This is my answer to storing all those failed prints, and raft materials, and leftover filament, in a handy dandy containment unit, called a "Maraca". Make 2 or more and it's PARTY TIME! Make a derivative, or Mashup. The Handle has a key core that is 10mm diameter, with a 15mm x 5 mm key that twists into a keyhole (2mm material thickness for keyhole). It can be made on a Makerbot.Basically, print the handle, print the top, fill with scrap print plastic material, put the handle in the "keyhole", twist the handle 1/4 turn, and TA-DA! You have a maraca. You can use Modeling Glue, MEK, or Super Glue to permantly attach the two main pieces.