I cant wait for the experiences! great post man. I thought of this alot, never did it, but seems ok. although.....things to consider.
product leaching, uv breakdown, ....but man, with the handles built in, the never ending free supply, and near perfect size is tempting.
if they were black...Id have done this by now lol.
I've used them indoors and they worked great, I tried em outdoors and the Sun really beat the hell out of em, they broke down outdoors bit did just fine inside.
That's a great idea considering I'm not supposed to put them into my recycling which is whacked! I wouldn't count on one holding up very well buts there is no shortage so go four or five ply.
I've seen the similarities in the looks between those and smart pots ....probably would work just wouldn't last many grows IMO .....try it...I've seen people growing plants in fucking old paint cans on here ....GL