The FabuMotion Fabric Mover for FMQ on my Viking Sapphire. When demo'd it made FMQ look so easy-just gliding along. Well, in three yrs I've used it a total of 3 hours (and it takes me 1/2 hr to set up). The quilting space is so small--about 8 or 9" so you're constantly moving and repositioning the quilt. It's in the box under the bed so I stub my toe on it every night going to bed--a constant reminder to "think and try out" gadgets at shows or shops more than once before buying.
And of course, there was the special show pricing and the opened box special pricing so it was $200 less if I got it right now and not later.