We bought one of those minute swim towels that need to stay damp, they are brill for drying off after a shower, then I just use my normal towel for a final rub keeping it dry.
Also I use a trouser coat hanger ( the clip type) to hang our towels up to dry.
Another useful tip, I bought 4 towel rings that hang over the door for hand towels.
And some useful over door hooks from Netto, I put them on the Wardrobe in the bathroom for hanging wet coats or just for a dressing gown.
This way The motohome stays intact without drilling holes, and I can take them on to any new van we have.