Besides my stamps I have three other collections, two of them are a little out of the ordinary, and the third might be considered a little strange. One of the out of the ordinary collections is sterling silver bookmarks, and when I started collecting them (mid 1970's, just before moving from England to the US), I thought they weren't very popular, and they weren't back then but judging by how many you can find nowadays on eBay
, they're quite popular, but the nice ones that you could pick up back then for 5 or 6 pounds are now considerably more. The other out of the ordinary collection is pre-publication review copies of books, the kind that publishers send to magazines and newspapers to review. They generally aren't completely proofread, lack the jacket, and often, in the case of non-fiction books, lack even the index, but they are quite uncommon since there usually aren't more than a couple of hundred copies printed. The collection that is probably a bit strange is product labels which say "Made in...." or "Product of..." and the name of a country. I'm trying to find as many different countries as I can, I have about a hundred, and after trying to think of the best place to store them, I thought of a book of flags of the world, so I've mounted them in that.