A to Z Challenge: S is for Slinky

S is for slinky
that curls up so tight
after walking down stairs,
or stretching out of sight.


I loved playing with Slinkys when I was a kid. My favorite thing was to make it walk down the stairs. Unfortunately  my Slinky usually ended up in a tangled mess after a short time, having been stretched beyond its limit or made to do something other than walking down stairs.
What was your favorite thing to do with a Slinky?