Epic Fail Purchases - Ever Made One?

So I was trying to be sneaky and sexy and get the wife some new toys for the holidays and out of a purchase of 4 items I want to send 2 back. My wife is a smaller lady, and when we opened the box and pulled out the two toys, we were like "What the Hell!!? That will never fit." lol So now I have to do way more research before buying. I was so excited to suprise her,and bombed. lol oh well. Anyone else ever bomb on a suprise gift?