Lucia, I think we are talking about the same octopus toy!!
This one is meant to be hung in a doorway, only our doorways are funny shapes so we hang it off one of the roof beams in our loungeroom over their cat tree.
Zoe is so funny, she will grab it and climb down the cat-tree until the elastic is at full stretch, then she lets it go and it flies back up and she races (full pelt) up the tree to get it and start the game all over again - very cute to watch.
Nelson just likes to hang on to it and lick it until it is sodden - he likes catnip though where as Zoe doesn't. So maybe the catnip inside is the most attractive part to him while Zoe is just enjoying it being a toy???