Lay out pretzels on an un-greased cookie sheet. Set a Rollo candy on each pretzel. Put in oven at 250 for 4 minutes. Take out and top each with a pecan. (Press pecan in lightly.) Put in refrigerator to harden for three minutes then remove. You can make up to 57 of these if you use a whole bag of Rollos. You'll probably have extra pretzels left. Eat the evidence.