this is something i had a problem with when i first started turning, i ran out of things to make!!
fruit (apples and pears)
decorations (christmas, halloween etc.)
off center spindles
table matts and drink coasters
childrens toys (a rattle with ball bearing inside)
goblet (maybe with captured rings)
purchasable project pieces (inlayable clocks, gold plated letter opener, bottle stopper, key ring, paper clips, ash trays etc.)
and probably a lot more that i cant think of.
hope this helps,