I bring my camera!
We grow our own catnip usually. Hopefully what grew last year will overwinter and be harvestable.
I don't use catnip spray. I buy cosmic catnip. I swear to God every time my cat gets his catnip I have to leave of how funny the show gets.
Well, I've already told ya how I feel about the spray junk! The one time we used it a long time ago, it did nothing for the cats. They smelled it and gave an "OH, Whatever" look. I'd never use this stuff again. I also don't trust the ingredients in it-God only knows if they're safe or not. If something's ingredients are questionable in any way-I don't go there!
It starts off with them having a jolly old time, then one thinks the other is giving them a dirty look or ready to steal their toy... Then it turns into a bar room brawl, lol. Lots of rolling around, rubbing, vampire kisses, swatting, and see who can eat the other's head, lol. (on the regular stuff.) The spray stuff is a dud...
Never used a spray, but good luck!
Personally I don't trust my cats enough to get them high! They have few enough inhibitions as it is!