Invader zim and weed I'd have a hard time parting with, like you'd be looking around $35 each for it to be worth it to me. I'm sure the price will come down with competitions and prize boxes gradually but I designed both of the ranks and like both.
Feels I am interested in trading, mrevilpwns offered a penguin. I need to get a PC on it but I believe the last one sold for $25, so you'd have to beat that.