Im not to sure on corns. But I would go for a ball try to adopt one from craigs list cuase ur still not 100% ur ready. They are calm docile nice and some dont really move or do mutch... cuter too in my opinion and they max out around 5 feet but are fat. I think with the extra mass a healthy ball could deal with a half a year fast better then a corn. Ur decision but be sure ur ready. I love my two balls and check and hanlde em every day. I wouldnt change a thing