Help! I'm planning a baby shower...?

& was having the hardest time thinking of favors. i realized i have a whole bunch of those plastic rectangle gerber baby food containers(with the covers) and thought it would be cute if i could use those apart of the favors... but i need some ideas... what could i put in them? & how could i decorate them? the theme has not yet been determined, so me & a fellow-planner decided to just make the shower pink & brown. the shower will be a couples party at a pool in hawaii. if you could tell me how you used them and even show me pictures, it would be greatly appreciated. thank you for your help.