Mechanical double dice

Boost MeDO YOU LIKE MY DESIGN? PLEASE GIVE ME A BOOST!THIS WILL ALLOW ME TO IMPROVE THE MECHANISM AND PROPOSE NEW VERSIONS.Inspired by a model from the 1920s, I created this gadget in the credit card format.Choose the “no bearing” print profil if you don't have bearings.For more velocity, you will need for a good operation two 625ZZ ball bearings (EA016 maker's supply)(I know that many of you, makers, have them!!), and a ballpoint pen spring.The bearings must rotate without friction, so