you can ship something this size in an insulated envelope . I think the average postage was under $1.60.
when it overheats (using to close a wind shield, or to tight,) it will vaporise the alk. and start to burn hot. not good!@#$%^^ lot of fun to make tho. my newer ones with the complete 5 + inch bottle are real nice and actually weigh not much more./gnome