Trading Idea

Me and my friend play a two champs (TF and GP ) and he got from hextech a TF Skin and I got from hextech a GP skin but the problem is that I play TF and he GP so we found it a cool idea to add like a hextech trading system so we can trade our skins. This would be really nice because I want his skin and he the one I got and you need to make like an anti scam so you cant trade like nothing or something bad for something good but yea this was my idea. What is your opinion about this?