My fail was at a flea market in 1999 when I first got back into ponies. I had never seen a baby boy in clippers pose, so when I found clipper for .25, i passed him up thinking he was fake or cabbage patch I have TONS of fails since then! Will try to post them as they come back to memory
OH! I remember watching a lot of ponies on ebay and I decided to pass because it had a birthflower pony in it, well it was dyed pink, so I thought Custom Bait! I was trying to aquire the full set of birthflower ponies and decided to pass since it was "flawed".........it was an alt. birthflower The lot went so cheap to! (this was back in the day when you could get 100+ ponies for 50.00 including shipping lol)
ETA: 1st time customizing, I didnt know how to re-root so I sliced the ponies head from the start of the plugs to the end, and crammed some curly hair in it and super glued it shut.........so embarrassing.
I had a quite recent fail. Preordered comic con two face pony f/ a guy on ebay for like $45 thinking I should get ahead of the game and get her before she skyrockets like the 2007 pony. Now she's selling on Hasbro's site for for $14.99. Crapolios I tells ya!
Oh, lordy, that was great, I really did have to cover my mouth on that one, my son is asleep and I didn't want to wake him with me laughing at the cinco-pod pony. lol!