How big is it? Is it a dog exercise pen? What shape is it or what shape do you like to keep it in if it’s rearrangeable?

Hmm that’s a good idea. I was kind of trying to do the same thing as you but I did it for a travel carrier. I was trying to turn a plastic crate into a travel carrier but I didn’t have a top so I ended up making one with fabric. What you could do is cut out a piece about a foot longer than it on all sides. I then cut two strings on each corner and cut off the excess fabric. You could then tie each corner onto the xpen so it would be covered without the hassle of clothespins. Plus if you want the top to be off, you can untie two corners, bring all the fabric over to the other side, and tie the strings around the fabric. You could even get nicer outdoor fabric that is maybe even waterproof. If your sheet if large enough you can use that instead. This option is slightly more permanent and easier than clothespins, but there’s probably a better solution out there so let us know what you end up doing!

Not sure what your budget is or how permanent you are thinking, but if you want something solid you could possibly do something with a carport.

There are also lots of (super awesome) outdoor run ideas in the housing section of the bunny info tab at the top of the page. 🙂

I was also thinking you could connect a bunch of NIC cube grids together to fit the size area the pen will be, then connect them to the pen with clips. Then you could fold it up and put it away with the pen when not in use. Wouldn’t protect from sun but would be safer protection from predators.