We found this event, which was actually a 5 year old birthday party, and fortunately, they allowed us to share it here on Resident Events!  We wish we had more details on the construction of the party pieces, but hopefully you can figure out how to create them on your own.  Some of these ideas are incredibly creative, such as the Goomba stomp, ? Boxes, and Yoshi eggs!

Edit:  Looking back at this event, one of the things we love most is the immersion into the idea.  For example, you could get a superhero-themed bounce house and call it a "superhero party", but does that really excite people?  Events like this, that take an idea to the next level, are really want create memorable moments.  The kids who attend this party will remember this for a long, long time, which is really the goal of any party, right?

Mario and Luigi hats

Mario and Luigi Mustaches

Princess Peach Crowns

Mushroom Desserts

? boxes, they have holes in the top to let coins out when the bottom is punched

Ghost Balloons

Army of Goombas to stomp

Goomba Close-up

Yoshi Egg Race

Piranha Plants

Piranha Plant Close Up

Source