Using a basic Dremel 7700 with the engraving tip, my idea was to try to make faux 2.0 templates by simply hollowing out a dimple at the ends (and, for the 1-straight, sides) and painting it with a Sharpie paint-pen. They wouldn't have lines, but the lines aren't really all that important anyway. They'll make adjudicating collisions a bit easier, but if you've got enough practice at that, it's not hard to do without lines.
I am not good at projects like these, and my non-handiness has always been compounded by the fact that I'm too lazy to really prepare.
Results were mixed. I used my least favorite template set to practice on. I'd say about half of them are pretty good, in terms of where the dimple is, and another 40% are close enough for casual play. The other 10% are off by more than a millimeter ... so, noticeably.
I do think this is doable, by people with steadier hands, more experience, more patience, and better tools. I'd recommend a more precise bit than the 7700 engraving tip, and I'd recommend a vise.
I haven't decided if I'm going to try again with my beloved custom Litko sets. I'd hate to screw them up, but on the other hand ... if they're useless for 2.0, then what's the loss? At the very least I'm going to wait and see if someone offers a service to do something similar.