No this is not my idea. This topic came up a few times during the summer . I believe it was this thread that started things but I can not remember.
https://www.scrollsawvillage.com/forums/topic/32348-napkin-holder/?tab=comments#comment-361434
These were popular on some Russian sites and brought over here. I have been working with a couple people to get me some of the designs. Don in Brooklin, and Ivan Nikolaev, members here. If you do a search here you will see these threads about this type napkin holders. Others have created designs and joined in also. I have other ideas if these do take off and will work on them this winter. I have shown the back of these 2 to show you the simple way the napkins mount. These are 5 X 5 cocktail napkins folded in a triangle and slid in the wheel. These are patterns basically taken from some laser cut patterns found on etsy.