The other contest at the convention was the "get it through the door" contest.
Each contestant could build anything they wanted, they just had to be able to get it through the door.
The downside for me was that this years convention was sponsored by Betalatex balloons, and I only have Qualatex balloons... so I wasn't able to make anything ahead of time and bring it to the convention.
I got around it though... with my wits and charm.
I borrowed and traded with the other convention attendees to get supplies from them, and used left over balloons from the different class sessions. I then built this guy in between sessions.
See you tomorrow.