Well, I shopped at JoAnn's and bought the 18mm rotary cutter with the small turning cutting matt ....

(( Still I could not get this to work!!!! So, now I've spent about $35 *trying* to cut these things out
And, because I have
lots more time than $$$, I am simply tracing around the template (after I put the Invisigrip on it) and then cutting them out (scissor wise!). I think I might have 5 charm packs and may throw in a few other fat quarters that match good .... so this will not be a big *anything*!!! Thinking a small throw.
Thanks for all the advice, and if I didn't want/need a sewing table for my Janome 6600 I would buy the AccuQuilt Go in a heartbeat
jody