I have Dymo heat printed paper labels but they require a pc/laptop and desk top for the one with built in key board, plus household current, and are not ideal for on the run lable making.
The unit i just bought is named "Print Pod" and I overpaid for it by buying direct from the makers, rather than Amazon, and I'm hoping it'll fit my needs (read "wants") for an on the go tool.
I hope others can share their experiences in this field, there are so many good tools available in now-a- days, and photographing out of the car does allow for mobile exploring, I hope, for this new year.
Godspeed.