God, I made some custom textures myself once.
Out of necessity of course, very complicated business there. Going to actually learn it next time I need them instead of having a friend of mine hold my hand the whole way... he designed ZF_Alpine if you've been there... come to think of it my other friend found the Force Jump... I have cool friends.
Anyway, I could always try if nobody else will... but it was very complicated and took me like 2 hours to figure out how to get two signs made.
EDIT: Not that important but I noticed the location of Iowa thing, I moved out of there about 4 years ago. Just for the record.