Jake Wiens and Matthew Rice have recruited a brain trust of engineers to help them produce small-batch kendamas with interesting new design features, and the result is Grain Theory. No word on pricing or release details for the first batch, but watching this video I think it’s safe to say that the kendama world is going to lose their damn minds when these drop, so keep an eye on GrainTheory.com for a chance to snag one from what will no doubt end up being an historic first batch.

UPDATE: Grain Theory kendamas are available here: http://www.graintheory.bigcartel.com/. Looks like the complete kendamas are sold out, but you can still pick up the Beach Ken (ken only, no tama) for $35.