I perused Ebay and Etsy but just couldn't find anything I liked that was in our budget. And then the other day when I was cleaning out all the toys Gideon doesn't play with any more - I struck gold.
His old Melissa & Doug Wood Stacker Toy! It is perfect for his room. It has 5 hooks (varying sizes) in fun primary colors. All Mike had to do was screw it onto the back of the door.