I can't help but notice that the main issues with the standard clove hitch method is that 1) it is hard to tie and untie and 2) you have to pull all the rope through it, which is annoying and time-consuming.
For the first point, well, the clove hitch is pretty straightforward. If you can't learn how to tie it, then by all means use the piece of PVC. However it seems akin to going climbing without knowing how to tie a figure 8...
As for the second point, why not just use a slippery hitch? It's just as safe and you don't need to pull the entire slack through. Just tie your clove hitch as usual up until the last section where you have to tuck the rope underneath the final turn. Instead of all the slack, just pull a decent-size bight (loop) through, then tighten. The added bonus is that you can simply pull the bight out to remove the knot in the morning.
Also, the Ashley Book of Knots gives a number of methods to tie the clove hitch in-hand without having to pull any slack or bights. ABOK 1178 is probably the best. A slippery constrictor knot, ABOK 1250, is also another good option.
All this to say that anything else than a stick is a bit of overkill. YMMV