what are some good treats for horses when it is so dry out?

While my boys are on round bales and staying fat and healthy, there is no where for them to get anything green to nibble since we have not had rain in a month and it has been in the 90's and up lately.. I would really like to give em some treats with some moisture in them.. someone suggested watermelon... any other suggestions?

Cantalopes (sp) make my horses go nuts!

just curious is that good nuts like they like them or nuts like weird?

Apples are good. I will sometimes drop chunks of apple in my horses water bucket and make him go bobbing for apples - he gets more water that way too.
Posted via Mobile Device

I like to freeze ice cream tubs of kool aid or gatoraide for them to lick on. I flip the frozen chunks out into their water troughs for them.