is a very cool concept but it gets rot faster when players have a cane so it is never used again
walking cane gives 25% speed so the speedy balloon could bring more speed but reducing the durability or increase the sanity cost
having more speed boost than the cane will make it atleast used sometimes when the player wants to go faster instead of just using it before the 1st winter (just 21 days) and forget it for the rest of the time
it could be ~40% or ~35% speed boost but half time, ~40% ~35% speed boost with ~15 sanity cost