Don't do the bare minimum.  Add some flair to your life!  I've created two Lego compatible base plates that can be mounted with magnets or glued onto objects.

You can print these for all sorts of things.  Print 15.  Heck print 37.

In my case, I added a few magnets to a couple, so I could mount them on the fridge.  I glue several to the back of an old laptop that was covered with stickers.

If mounted it with magnets, you'll need at least two 8x3mm round magnets.  Add more if you desire a stronger hold.