craftgrrl | a couple quick questions

x-posted, so sorry if you see it more than once.
i have an upcomming craft show, and i have a ton of the plain jane cotton dishcloths (the ones knit diagonally with the YOs and k2togs) that i plan on selling. how much should i sell them for? cost of materials isnt a factor, because i bought the bigger sized skeins at a dollar store for like 25 cents each when they were going out of buisness...
also, is there any way you guys can think of to package them? i was thinking tying 2 or 3 together with a bow tied from the same colour of yarn...
thanx!