You can order them in lots of colors, different monograms, with borders, covers, you name it.
You also see the wooden ones:
Here are some more options:
You can even take them inside as they used equestrian trunks in this office:
And for the kid who has everything, check this out, a Breyer horse barn, complete with tack trunks:
And if you need somewhere to keep all those ribbons you keep winning, try this: