Get them magnetized first

This is what I used to get the magnets together. I like to use a sheet of 12-14 gauge sheet steel from the local hardware store. I like to cut all the magnets using the base. Seeing as most of these bases have slots I have to cut the square from the magnet strip and then cut one more time at an angle to fit between the slot.

I then tear piece of paper off the backing of the magnet.

Liberally put the 527 glue on the base. Squish the magnets into the base.

Then just let them sit for a few hours; this will ensure they can be moved around and based.