I found a 19/20 cost solution for "Scale"
{"displayName":"Scale","levelName":"Size Difference","solution":{"objectSize":7,"objectData":[0,14,0,1,0,3,0,0,10,0,7,0,0,0,2,11,0,3,0,2,0,2,12,0,3,0,2,0,2,13,0,3,0,2,0,2,14,0,3,0,3,0,1,14,0,3,0,0,0,1,13,0,3,0,0,0,1,12,0,3,0,3,0,0,12,0,3,0,0,0,1,11,0,1,0,1,0,2,10,0,3,0,2,0,0,13,0,1,0,1,0,0,11,0,3,0,0,0,1,10,0,1,0,1,0,14,12,0,3,0,0,0,14,13,0,8,0,0,0,15,13,0,3,0,3,0,15,12,0,3,0,0,0],"solutionName":"cheaper","levelVersion":0,"completed":true,"cycles":45,"cost":19}}