Just saw this today …
Creopop: 3-D Printing pen based on photopolymer ink
Website:
Video:
I haven’t delved deep, but I do have questions about their argument of thermoplastics vs. resin in terms of the possible danger factors. The various ink offerings is impressive, if they all work as well as the video describes. If this device works as well as they advertise, then I know a few artists who would enjoy it.