Great for sitting or travel. a great alternative.

please scale down to 30 percent. on my creality printer k1 it was a nice fit it. you may need to scale to suit your finger.
the bearings are a challenge to loosen up. you may need to use a tool to shift them loose. and then spin it multiple times to free up the balls. mine worked out fantastic.

this is a remake no credits to me I just added the beads and cross using tinkercad.

enjoy and God bless.