These are mine, easily, and it's the type of stuff I'll likely never sell, even if I cash out:
90s Taiwan lotto scratch off cards with Mario World. I got two boxes, occasionally I'll toss one in when sending off a parcel to one of my friends.
Diddy Kong lighter. This is made of metal, quite old too...
Mario paper dolls...
Alright so I bought the Pac-Man lotto card a few months back, it's modern and I think it'd licensed. I actually don't care about it too much, but I think it fits in well with the rest so...