Whether it's feeling the paint on their hands, creating their masterpiece or getting the chance to do something different; for whatever reason, every toddler LOVES fingerpainting! As expected, it is a messy activity which entails a lot of clean up and a bit of preparation, so give yourself plenty of time. If you also have a younger child, this is the kind of thing you may want to set up as soon as bubba is down for a nap, to allow yourself as much time as possible.
If you don't have any fingerpaint on hand, you can make some - it's another way to get your child involved. I'll post an easy-peasy recipe shortly. Grab some paper (big rolls of butcher's paper are ideal, find it at IKEA or Riot Arts N' Craft), some paint and a smock/old t-shirt and get to it! Make sure you have somewhere to hang the paper as they finish with each piece, and a bucket of soapy water and a cloth wouldn't go astray either.
This is one of Eden's more recent efforts, a pink giraffe, and I think the giraffe shape is actually discernable!