I've just been to Sainsbury's and they have bamboo bee houses for only £3.49, which is apparently half price.
Bee's are good and we need to encourage more - so go get one. Or make your own, which I'm sure you can also do.
Note; these aren't full-on bee keeping kits for producing honey. They're just designed to create a home for wild bees in your garden.
Now buzz off.