This is a remix of the fantastic Spray Holder for Multiboard.

To attach, you will need two Multipoints. The small thread variant is recommended, though other Multipoint variants will work as well. Just don't use a Lite Multipoint.

The bottom Multipoint can be a little tricky to attach. I found that it's best to get it started by hand, then use a slotted screwdriver to drive it the rest of the way in.