Aspiration RewardsAspiration rewards act somewhat differently than do Career rewards. You can unlock Aspiration rewards based on the number of Aspiration points you've obtained via completing Wants. If you perform a Want that nets you +5,000 Aspiration points, for instance, you'll be able to use those points to "buy" these items; if you subsequently enact a Fear for -2,000 points, though, you'll lose some of your purchasing power. The natural degredation of your Aspiration meter doesn't affect your Aspiration points for the purpose of obtaining these items.
Note that Aspiration reward items can only be used successfully if you have a gold or platinum Aspiration rating. If you attempt to use them when you're in the green or red zones, you'll likely fail, which can result in some tragic misfires!
Money Tree: 3,000 Aspiration points
The Money Tree has a function that's fairly obvious, judging by the name; if watered regularly, you'll be able to harvest Simoleans from it. You won't get a whole lot of money from each harvesting--only 40 bucks--but you can purchase multiple Money Trees and group them together for mass harvesting, if you wish. Some players have reportedly been able to make a daily income of 3,000 Simoleans or more just from Money Trees, but this takes a whole lot of game time.
If a Money Tree isn't watered regularly, it'll wither and die. Also note that your guests will usually make a beeline for your Money Trees and nab your money if possible; you may want to remove any doors leading to the Tree if you have guests in your house. If you use a Money Tree with a low Aspiration meter, you'll only gain a single Simolean.
Noodlesoother: 5,000 Aspiration points
When you use the Noodlesoother, your Mood will automatically be increased by 50 points (about one-quarter of the full meter). Your Needs will decay more quickly, though. If you fail at using it, you'll pass out from a complete lack of Energy, and your Mood will obviously take a concurrent nosedive.
Pasteur's HomoGenius Smart Milk: 7,500 Aspiration points
The Smart Milk can only be used five times. When you feed it to a toddler, he or she will be able to learn skills (especially the important potty training/walking/talking) at an accelerated rate. If you fail at making the Milk, the bottle will turn red and will cause the baby to lose a skill point. If this occurs, cancel the feeding before your Sim reaches the baby.
Cool Shades: 10,000 Aspiration points You get five sets of Shades when you spend the points required to obtain this item. After you put a pair on, the next social interaction you perform will be greatly increased, in terms of how it adds or subtracts from your relationship points. You can turn a base hit into a home run with this item, but you also face the risk of getting beaned in the head and irrepairably damaging your relationship if your interaction gets rejected.
The Eclectic and Enigmatic Energizer: 14,000 Aspiration points
Although this item can only be used five times, it has one of the most impressive effects in the game. When used, all of your Needs will have an immediate and substantial boost; this should also have an incredibly positive effect on your Mood. If you're below the gold level of your Aspiration meter, though, the opposite will occur: you'll lose a substantial portion of all of your Needs. This can't kill you, but it'll take you a couple days of game time to make good the losses.
Thinking Cap: 16,000 Aspiration points
The Thinking Cap only lasts for 24 hours, but in that time, all of your skill-building activities will see their efficacy doubled, which means that you'll obtain each new skill point in half the normal time. If you fail while using it, though, your Sim passes out due to a complete loss of Energy and loses a random skill point.
SimVac: 17,500 Aspiration points
The devestating SimVac can either transfer Aspiration points (up to 3,000 per use) or a random skill point from the target Sim to the user Sim for each use, and contains up to five uses. This isn't a very nice thing to do, though, so you can expect to greatly harm your relationship when you attempt to use the SimVac on someone. Therefore, pick someone you already dislike! If you fail at using the Simvac, you will transfer the Aspiration points or a skill point to the target, instead of vice versa, and your Needs will get penalized.
Love Tub: 20,000 Aspiration points
The Love Tub is one of the more durable special items, in that it spawns a completely functional hot tub that will stick around permanently. The kicker is that, for the first four hours after you place the Love Tub, all social interactions are more easily accepted by their targets, and the relationship score rewards are greatly increased. This is a pretty short window in which to gain points, but you should be able to move at least one other Sim from a mere acquaintance to a dedicated lover within this time frame, if you work hard and ensure that both Sims enter in a good mood.
Elixir of Life: 30,580
Although the Elixir of Life is incredibly expensive, its effects are commensurately powerful: when used, your next age transition will be set back by three days. You can use each instance of the Elixir up to five times, meaning that you can artificially extend your lifespan by up to fifteen days. If you manage to earn up enough Aspiration points to buy another Elixir during this time, you can theoretically extend your life indefinitely! If you fail at using it, though, you will be instantly aged three days. This can kill you if you're close to death of old age.