How to make a "Frankensoap" from accumulated scraps of soap bars?

Basically, you have to melt the pieces together in a double boiler or crockpot, add water (3 parts water to 4 parts soap) and any fragrance or oils you'd like to scent the soap, and pour the mixture into a silicone mold. This page gives detailed directions, with photos: http://www.wikihow.com/Make-a-New-Bar-of-Soap-from-Used-Bars-of-Soap

Another easy way to use the leftover scraps is to put them into an old cotton sock, wet the sock and use it as a "scrubbie" when you are in the tub or shower, The cotton feels great on your skin and the soap will lather through the cloth to clean your skin.

Soak the soap pieces till they get fairly soft. Work them together until you can form them into an interesting shape (fish, geometric shape, butterfly, letter, etc. Try using two or three colors to form a pattern or object (fish, flower, numbers, etc. Let dry; trim. Makes a unique gift for one who has everything.

thank you all for your suggestions--I definitely will try them all! thanks again!