A spot of market research then, if you don't mind...
One simple project I have finished on a breadboard right now I'm looking to finish nicely is a wireless trivial buzzer receiver. Hardwarewise, it's an IR receiver, an RGB LED, a piezo beeper, and batteries. When it receives an IR code, it lights the RGB a colour depending on the code, sounds the buzzer for a second, delays several more seconds and then turns off the LED and waits for a new IR code.
For the enclosure I want as small a form factor as possble, somewhere to mount the IR receiver with as wide a viewing angle as possible, and somewhere to mount the LED with a diffuser. At the moment I'm looking at a very over-sized project box which makes the LED look dinky and I still don't know what to do about the IR receiver.
As far as paying, I am prepared to, but it is a one-off project so I wouldn't want something with lots of upfront fees and that really limits the budget.