I recently backed a cute and dainty metal bookmark from Snow and Leaf. You can find Snow And Leaf on Instagram and Kat also runs an Etsy shop.
I backed the Mt. Fuji x Sakura design which has a beautiful pink pearl sakuras surrounding mount fuji and has rose gold plating. The charm at the end of the chain is also a sakura flower.
Size: upper part: 5cm*8cm, lower part: 2-3cm, chain: 5cm.
The Kickstarter campaign also included a matching sticker.
There are four bookmark designs available and all of these can be bought in her Etsy Store following the campaign.