what to do with 150 “leftover” macaron shells

So I completed my MacAttack challenge using the recipe I have had the most success with, but as Jamie pointed out in her lovely comments to me, yes, I had a tonne of leftover macaron shells. I’m not sure just how big they make their macarons – maybe the size of a hamburger – because the recipe says it makes *20* sandwich cookies – I got 90. That’s right, 180 shells in total. Well, seeing as I