I use a few wire racks in my office and to save room I designed this to hang my PS3 Controllers out of the way.
There are a few different wire rack designs, this one is designed to fit one with the large outside support being 7mm thick. It also works on the 5mm rack design that is more popular with racks from big box retail stores but it doesn't fit as snug.
If you print one let me know how it works for you and post up a picture of it in action!
Printed on the SeeMeCNC Eris, there currently isn't an option for it on here.
I recommend printing this with the large bottom down and with light supports turned on to support the hanger