I have used Autodesk Maya to produce phone cover for Apple 6s Accessories Challenge.
I have thought about possibility and convenience of using this cover as a 2 in 1 spray. The instructions are attached as a JPG file. The idea is: A small double sided container ( for fresh mouth spray & perfume) would be attached to Iphone cover's back, allowing a person to carry it with him at all time without using any extra space. It would be handy to have it with you and be ready for unexpected situations. Liquid could be refiled anytime with any desired liquid.