I thought it would be fun to create a different type of hot air balloon for the contest.

So this is my entry, JET SPACE BALLOON. 

I used small LED lights under the PETG canopy to highlight the clear PETG. 

The main balloon prints without any supports, but does need 15% infill (Gyroid); otherwise, the outer walls on the top will collapse because the infill isn't dense enough. 

I printed the main body in CaiLab Black & Silver Silk PLA. 

Happy printing!