Mad max called and said he wanted something that might help him kill rats. THE 2.0 VERSION IS HERE: http://www.thingiverse.com/thing:215533VERSION 1.2 UploadedSome assembly required.This 1 print Thing will fit on a 6" x 6" bed and can be proportionally scaled to a larger bed.I suggest that you use acetone to glue the parts together. You may need to use a spring, or perhaps some small rubber bands during construction.Please feel free to improve upon the design.WARNING! Do not point at things that you do not want to damage or injure. This Thing is purely for entertainment purposes.NEVER POINT AT A PERSON OR CRITTER!