Can't do small curves without FMQing, but I think you could do big curves with a walking foot if you reposition the quilt sandwich often. It would be a real pain in the heiney, though. You could hand quilt them. I use my rulers (I have an omnigrid yardstick) and a fat water soluable pen to mark grids and chevrons and commercial stencils to mark curvy patterns. You could also draw free-hand, but straight lines would be hard that way.