Handling a wrong size spool

I needed to zig zag some rags quickly, but I wanted to use up some of my yarn that are on various size spools and cannot normally be used on my sewing machine.

Normally the yarn would be on the place where the green arrow is, but the spool I had did not fit onto that. The hole in the middle of the spool was just too small. So I took a roll of tape and just placed the spool into the roll. That is where the red arrow is. It held the spool on place well enough and I was able to use up the yarn from the spool. Any type of container would be good enough for this, a mug, flower pot, just something heavy that will not move with the spool.