Valve needs to bring back custom skins yesterday i launched tf2 and i had custom weapon skins and then tf2 updated, removed all the custom skins.
And now i play scribblenauts unlimited.
If you still have your files, go to the common/Team Fortress 2/Bin
then find the exe named "vpk"
Put your custom file (not zip file) onto the vpk
boom vpk to put in the custom folder