[momtothree]

“I figure one of those composting toilets might do the trick”.

Or, one of those really cool wooden outhouse things decorated with the crescent moon and heck... add some stars, too. Joshing aside, you are way more adventurous than me.

[dynachrome]

Here ya go. Not cheap! This is the cheapest one

http://www.lehmans.com/store/Appliances___Composting_Toilets___Nature_s_Head___Nature_s_Head_Composting_Toilet___16303105