Garden Decorations

These are just too cute.  Looks like a pillow, but really it is cement.  What a great accent for a whimsical garden!

Morning Glory

I love Morning Glory in a carefree and open area.  It makes a great backdrop on a trellis or lattice garden edging or border.  It is also fabulous on a fence bordering your yards or a wooded area.  However, this particular Morning Glory has become a nuisance.  It has attached itself to the lattice work on this porch and is choking out the beautiful purple and white Clematis that is supposed to be climbing the trellis.  I have used weed killer, pulled it out by the roots and spent afternoons calling it bad names in an attempt to get it to stop growing here, but every year it returns.  
Any suggestions on how to make it go away for good?