I wouldn't go to the trouble but I'm gonna lay this out for someone more athletic and dedicated. I'm a homebrewer, you can buy "party pigs" from most homebrew suppliers. The kit usually consists of three 6 liter polycarbonate bottles, a tap system and food grade CO2 cartridges. The mass of the tap and cartridges is negligible, you would be packing beer. Check northernbrewer.com or midwestsupplies.com, it will be in bottling or kegging
"Old Nashville still has a song and dance, and the Florida girls still wear no underpants.
And we all get drunk at the football game, yeh the new south, thank God is still the same" Hank Williams, jr