Super Delicious Easy Ice Cream Cake

My boss brought in this ice cream cake for our coworker's birthday on Monday and it was amazing. She told us how to make it, and this isn't so much a recipe as an instruction set:
Ingredients:

• 1 pkg Oreos - crushed
  
• Reese's peanut butter cups (or toffee/heath bar; or Nestle crunch) - crushed
  
• 1 container ice cream (normal sized), softened slightly so its easy to scoop
• M&Ms

Procedure:

• Take a pan you don't care about ruining the bottom of; or a cupcake pan with foil liners
• Fill the bottom with crushed oreos, add crushed reese's peanut butter cups
• Scoop in ice cream and smooth out (my coworker used cookie dough, but use whatever suits your fancy)
  
• Top with M&Ms

I think I will try this, maybe with oreos and Nestle crunch bars and topped with mint chocolate chip. Or maybe with crushed gingersnaps and that great pumpkin pie ice cream they come out with in the fall (what else could I put in there? top with some kind of caramel?)
:) Yummy!