All these ideas sound great
It's awesome that your husband in interested in pony customs ^_^
My fiance is not at all a brony, although he's supportive of my pony obsession. Yesterday he cracked me up by singing as much as he could of the FIM theme song and humming the parts he didn't know ("My little pony...hm-hm-hm-hm-hm-hm...Big adventure hm hm hm..." etc.)--shows how much I've had that show on lately!