What would you buy if you could?

[IKE]

Now that certain robot part suppliers are on the market, many teams find it better to buy rather than build resource intensive items. There are many great solutions out for wheels and transmissions, but what else would teams like to see made available?

I really don't want to turn this into a BUY vs. Build debate, so save strong opinions for some other thread. This is more of a brainstorming list of commonly needed items that are resource intensive (time, money, specialized machinery, specialized knowledge...) The reason I bring this up is from experience in Solarcar and other design projects I have all too often seen talented students tied up in endless hours of CNC or conventional machining for marginal gains in performance relative to a part they could have purchased off the shelf (i.e. hand made Titanium Lug-nuts for example). Also with a new control system next year, having ample programming and practice time will be essential.

To start things off, I would love a cheap off the shelf 3 speed transmission. Basically similar to the Dewalt's but an easier interface with a slightly higher capacity. (Overdrive has me addicted to high speed robots, but most FIRST games require a pushing gear too).