The costume worked great and ended up winning a funniest costume award at a friends Halloween party and won first place at my works Halloween costume ...
This year I wanted to try something a little different then my usual mash-up costumes. I decided to go big or go home and what better way to make something big then to inflate it. So this year I am going to convert a 8’.5” foot tall 7’ wide Stay Puft Marshmallow Man Inflatable Lawn Decoration into a portable / wearable costume. More projects / photos at SubBass100.com
The first step I would need to do is check to see if the fan motor will work on a portable DC power source. I was a little bit saddened when I read the sticker on the power supply. It read output voltage 12vac. If it was a synchronous motor the whole project would be canned but it turns out that when I hooked up a 12vdc power source the fan turned on and worked as it normally would. So I am guessing that either the label was printed incorrectly or the LED’s inside some how were part of an H-bridge to convert AC to DC.
Step 2: Step 2: Power
Next I had to find a 12v battery that would last long enough to keep this costume inflated at a party. This was done by using an old gel battery from a batter back-up. So I cut the wire that went to the wall adapter and soldered on some flat connectors that would allow me to connect to the battery. After testing the motor on this new battery the first thing I noticed was how heavy the battery was. So I decided to make a way to attach it to my belt. This one done by using a plastic coat hanger (the kind with the metal swivel hook at the top). I cut the hanger down to the length of the battery and used some duct tape to fasten it. I bent the metal part of the hanger to be more narrow and hung it from my belt. It was a little uncomfortable in the beginning but as I re-positioned it and bent it different ways it was not as bothersome anymore.