If you have that many to deal with it might be easier to do a small piece of pegboard with the long(er) hooks. Weight isn't an issue, they could be bent up a little to help hold them on there, and assortment pack of the long hooks should have 2 - 3 different sizes for the different attachments. While I'm not a big fan of pegboard there was a bunch in my shop when I took it over, and I've certainly made use of it as much as possible. Kinda handy in a lot of cases!
I could post up a pic of how I keep my shop nice and tidy, but I don't want anyone else to keel over from fright. However, I keep all my attachments in the box they came in along with other attachments from other vacs on top of my cabinet storage.