To make the treats:
Line a cookie sheet with greased parchment (or wax paper).
Melt the butter over low heat, add the vanilla, marshmallows and salt. Stir until completely melted and smooth.
Dump in the chocolate, pretzels, chocolate sandwich cookies and chips (or whatever goodies you've chosen).
Add the rice cereal and stir together.
For a Valentine's treat, grease a heart shaped cookie cutter with grease and quickly press the rice mixture into it. Work quickly so the mixture doesn't stiffen up too much.
You want to work on greased parchment paper or wax paper so the treats won't stick.
Wrap them immediately after shaping or they will get too hard.