Funny gimmick for Schlüsselvertauscher

The key caps are with me for 5 months on a key chain, and so far no significant wear can be seen.
Of course, there are just a few colorful plastic figures, but the "monkey" to spare to try each the annoying key :-)

One advantage of the 6-packs is that you still can bestow the significant other or additional "decorate" the office keys.