I think you should get a rubbermaid bin and start preparing a worm bin. There are dozens of messages here about setting up a bin. I like a bedding of torn up corrugated cardboard, dried leaves, and shredded newspaper. You will see other opinions about it here. 15 worms is not many of course.

Marshall

I already have a 189 Litre bin of red wigglers set up for about a month now and when i bought the worm castings i also purchased 1 pound of African Nightcrawlers to start up my second (smaller) bin.
Its the african babies I am finding and there cocoons are black so they are really hard to find.

I guess i should have mentioned i had 2 inside bins set up when i asked if i was nuts...LOLOL!!!