Cello Spike holder
Published on April 9, 2011
If you have a 'cello, no doubt you will need one of these; it stops your cello slipping across the floor by adhering it to some other object (usually your chair) - by means of a cord.
Simply print out, and attach some sort of string / whipping. Add a number of knots to the string to secure it for different chairs / angles etc.