Yea, they work pretty well. I used to hide some green things in there in high school, and my teacher took it from me for the period. The rest of the period me and my buddies were laughing our asses off while she had the can on the edge of her desk not having a clue.
HA I've had one for 10yrs atleast. I've got an RC Cola one and it looks EXACTLY like the real thing. Give it to my friends and ask them to open it and their like WTF? K+ for reminding me I had it lol!
very good idea, and an overseas source I used use to use these. never a customs letter. Except when i was younger 9 years ago when I got one from the Mexico boarder. (Never do that ever again) None from any boarders from EU or China