These smart, dry bag based toilet roll holders are always part of my kit when the tent and sleeping bag go on the bike.
I always pack mine, no more papier mache bog roll bits floating around my panniers.
Here's what Sea to Summit reckon.
Appreciated by happy campers the world over, the Outhouse is a masterpiece of design that took over 2 years to develop! With an internal toilet roll holder the Outhouse dispenses dry bottom tickets on demand, and can be hung from a nearby tree or even around the neck for bathroom convenience. Perfect for group use, the Outhouse can be kept centrally for both easy access and as an ‘vacant/occupied’ sign.