Please see my Kitchen Towel holder, this is my second version after changing the size of the bar and also changing one end of the bracket so you just slot one end in and push down.

I know it is only basic and I could make it more pleasing, but maybe I will do this at a later stage.

Hope you have good use of it.

UPDATE!!

I have added a longer bar as it was tricky to fit the kitchen roll, this will solve that now :)