This Is the Easiest Way to Dress Up Your Hamster
Stop wasting all your time making hand-sewn costumes for your hamster. Do this instead. You'll save time, and it appears that there's a chance a hamster will even enjoy this, unlike that tiny train conductor uniform you spend 46 hours on.
Here's a few notes from the Tumblr that posted these pictures, if you do decide to make carnival cutouts for your hamster (or other pet that likes to stick its head in holes):
I should point out to anyone concerned about animal cruelty- David Bowie (the hamster pictured) was not forced to do this, he put his head through the holes of his own accord, and out of curiosity. It is basically a box with holes in- the kind of thing you are encouraged to offer your hamster to play in for enrichment. You wouldn’t worry about someone giving their hamster a cardboard tube to play with- this is the same idea. The paints used are all non-toxic and kid safe, to ensure they would not cause him any harm. He was only in the box for a few minutes, and we took him out as soon as he got bored. If anyone else is intending to do the same, please do so responsibly, and with the best interests of your hamster at heart."