best NES/SNES Mario romhack that can be purchased as a repro?

[c0ldb33r]

I want to get my wife an NES or SNES repro Mario romhack. She loves NES/SNES Mario games and I'd love to get her a new game

What's the best Mario romhack that is available as a physical cartridge/repro? I heard that Mario's Adventure is good. Is this correct? Are there better ones?

Note: I do not want one of those crazy hard romhacks, I want something fun. My wife likes games, but isn't great at them.

edit: poking around youtube, the romhack "Return to Dinosaur Island" looks pretty fun. It's also available at gamereproductions.com