Here is my Lens called "Metallic". You can tap through different kind of materials. Lens link: https://snapchat.com/unlock/?type=SNAPCODE&uuid=b3b4ec1838b948cfa8e3d895484234ec&metadata=01
As the assets library gets more and more assets, it would be great if you could add some to an additional "Favorites" Tab. For example there could be a star icon next to every assets. Cheers, SirQu3ntin