CVDs will help, but even with CVDs, you'll want a nice snug fit (not too tight that the dogbone-side jams during suspension travel).
The BEST material I've found to use on all my vehicles, regardless of Tamiya or not, is a piece of Nitro Fuel Tubing. Just cut it to whatever length it recommends in the manual.
I use Nitro Fuel Tubing on all kinds of things, there's like 101 uses for it.
I also use it to cut little rings out, and place them over ball studs for the suspension links and the shock mounts, to take out any rattling and slop... The little rings fits snug underneath the ball-cups and the shock caps when they're both snapped into place. Just place the ring, snap in the ball-cups and voila!
Fuel Tubing is awesome, I recommend everyone to get a foot or two. A foot-long fuel tubing has lasted me sooooooooo long... I used them on four or five vehicles and I still have about half of it left...