stickAndFollow

from pymel.core import *
# select list, then snap to object
sl = selected()
startL = spaceLocator(n="startL")
endL = spaceLocator(n="endL")
cp = createNode("closestPointOnMesh",n="snapperCheck")
snapList = sl[:-1]
snapto = sl[-1]

snapto.getShape().worldMatrix[0] >> cp.inputMatrix
startL.translate >> cp.inPosition
cp.position >> endL.translate
snapto.getShape().worldMesh[0] >> cp.inMesh

for s in snapList:
    print s
    spap = s.listRelatives(p=1)
    l = spaceLocator(n="tempPose")
    pc = parentConstraint(s,l)
    st = l.getTranslation()
    delete(pc)
    move(startL, st)
    pc2 = pointConstraint(endL,s)
    closestVtx = getAttr(cp.closestVertexIndex)
    closestVtx = str(snapto.getShape())+".vtx["+str(closestVtx)+"]"
    target = polyListComponentConversion(closestVtx,fv=1,tuv=1)
    xy = polyEditUV(target,q=1,u=1,v=1)
    pc = pointOnPolyConstraint(target,s,w=1)
    setAttr(pc+"."+snapto+"U0",xy[0])
    setAttr(pc+"."+snapto+"V0",xy[1])
    delete(l,pc2)
    if spap:
        parent(s,spap)
delete(cp,startL,endL,)