Bakelite Buttons

I found these wonderful Bakelite buttons from the 1930s while trawling eBay recently - I have never seen any quite like them before with the tassles and bakelite tips. I uhmmed & aahhed about bidding on them and decided against it as they were quite expensive, and then regretted it... it's always the way! I wonder what they would of been used for... a coat maybe?