Showing several sources to buy LEGO Technic (Mechanical) snap together parts which fit the Yahboom Superbit Power Board which accepts the BBC Micro:bit " brain" programmed with Microsoft MakeCode and Bluetooth control. Any caregiver can snap together these parts to build a tabletop carrier so as to train a BCI computer to understand thought intentions of the BCI user. In fact, if you have a BCI I will give you a kit to test and practice with. This is my volunteer/not for profit project. I would love to contribute to the BCI world of the future . All of the software and hardware shown is open source.