If you give picky eating attention you will get more of it. It's harmless in the short run and you need to avoid reinforcing it by showing attention and interest and making it become a hard to break long-term habit. (If he ever becomes underweight and losing weight, then consult his ped.)
Give...
My daughter is almost 2. The things that are currently a hit are
toy kitchen with fake plastic food (she feeds her dolls/stuffies and makes me 'coffee')
anything Elmo
Crayons and her easel. Lots of blank paper
A dump truck and a set of wooden blocks
Musical instruments
The key with the...