You can not trademark a concept or idea. First, trademarks are words or slogans used to identify the source
(or brand) of particular goods. Thus, for example Pandora would be able to trademark the word "Pandora" to identify their brand of jewelry. Trademarks are not associated with the physical goods themselves.
However, in your situation regarding the beads and jewelry what you can do is apply for something called a design patent
. I am not familiar with what "race distances on beads" would be, but let me explain what a design patent is.
A design patent is similar to a patent
granted to inventions
, but instead of being granted to the utility or usefulness of the invention, it is granted on the ornamental design of a functional item
. A design patent thus protects the appearance of an article, and not its usefulness or functional features. And it is can certainly be granted to a unique design of an article or jewelry or series of jewelry items.
To familiarize yourself with design patents and the design patent application process, I refer you to Design Patent Application Guide
by the U.S. Patent and Trademark Office.