A balloon? "I've existed for ages" - if 300 years constitutes "ages", then fine.
(btw, this year is the 300th anniversary of the balloon, so plan accordingly)
"With no end that can be shown" - how about the place where you inflate it?
So, we getting a new CTB video? Is Anonymous Pennywise? Or worse yet, Silly Billy?
Or is Dan Sperry going to show us his Dove in Balloon trick?