Yep, I totally slacked yesterday, so you get a double post today!
And she's completely into this.
This one is easy. Magnetic buttons from Walmart are 50 for $4.95.
You'll also need some large glass flat backed marbles, or anything else you'd like to glue onto them,
and silicone adhesive.
A little squeeze of adhesive on the magnet...
...set the marble on top...
...and go make cookies while you wait for it to dry.
You could use black river rock, plastic gems, or unbreakable ornaments. A set of five is a nice little neighbor gift, and at $.50, it's cheaper than a card!