Apparently LeapFrog has already capitalized on this idea:
https://www.amazon.com/LeapFrog-Farm-Animal-Mash-Up-Kit/dp/B00AOHDC5Y/ref=sr_1_1?ie=UTF8&qid=1529875484&sr=8-1&keywords=leapfrog+farm+animal+mash-up+kit
Wonder how much I can sell a used one for? |