Picked up a silver case 46mm at Best Buy today. The quick release pins let me take off the brown leather strap and I attached two 22mm watch pins and threaded a NATO style nylon band on. Looks great.... Pics to follow.
Two downsides....First, If you thread a nylon strap thru, you put it between the 360 and your skin pulse readings....
Second, to set it in the charging cradle with a threaded strap, you need to kind of pull a few inches of strap up to make it fit. Not a big deal at all.
Sent from my Note 4