I try to avoid plastic, although as an act of self preservation I am less militant than I thought I would be. Anyway, I found some demi-tasse spoons that are stainless steel and the perfect size to feed babies with. I have less guilt, and the kids like them just fine. I Freecycled half the plastic spoons, and mosly use the demitasse ones unless we are traveling.
Demi tasse spoon
Plastic 'disposable' baby spoon
Regular tea spoon