Hmmm......Toothbrush, toothpaste and mouthwash?
Well, if it's for travelors, you might market a product like that through vending machines in hotel lobies that dispense varrious toiletries for about $2 - $3.00 per package, that is just about enough for a two night stay;
Or you could make the quantity slightly larger, include a reletively nice looking plastic case that is small enough to fit in a larger toiletry bag without taking up too much space, or market it as something capeable of being the only thing necessary to bring with you, other than your razor - Hey, you could even put one of those in there (make it a twin blade)!
It's all in the marketing. Make people wonder how they ever got along without one, then charge a mere $9.95! - Buy two and save! - Give one as a gift! You get two, count em', two "Mouth management systems" for ony $19.95! (That's actually not a savings, but hey, more for you)!
And if you call right now we'll upgrade your carrying case to our limited supply of simulated paten leather!
And thats not all (crowd cheers in amazement in the backround!) - ....
You get the picture. - Soon to be on your local cable channel as an hour long infomercial.