jm bullion is best option for price and shipping i have found for small quantities. i have full tubes of roosevelt dimes, washington quarters, franklin halves, and peace dollars. they are all called "junk silver" because the metal content is 90% not .999 pure. they still make a satisfying clink when you stack them, and will still buy you a chicken. i'm starting on my gold collection again, so far only have 1/10 and 1/4 oz u.s. eagles. and plan to backfill silver stash with barber and mercury dimes, barber quarters, kennedy and liberty halves, and liberty dollars. clink clink clink.
i keep them in my cabinet with my stash of copper and lead and oiled steel. somewhere in a yard in montana i have a tube of u.s. silver eagles and some tsptalk silver rounds, about 3 paces from the corner of the shed and then 2 paces... well i forget, but all i need is a shovel and i'll find them. i used to have about 50 tsptalk rounds but paid some debt and gave most of them away or lost them in bets. i do that sometimes.