Oooh, interesting one! Because what some will consider modern, others would call novelty. I think there’s probably a lot of personal choice to this.
I would maybe take a look at the unique/cool Tarot deck list. I remember one of the first ones there being a gummy bear Tarot.
If that isn’t novelty, I don’t know what is.
Personally, I like the same idea as you do. I like a novelty deck that’s just a bit of fun to use sometimes. I won’t use it for serious readings into something deep, but if I’m just having a bit of fun with friends, then this is my latest deck:
Aside from some of the collest packaging of any deck I have (and that’s a long list) it has this old retro cartoon theme and (for whatever reason) you see how the lines are just not quite straight and then rounded edges?
It’s a very casual deck. A lot of fun. Still completely usable for readings.