I have this one and it is at a good price. On sale at Petco for $6.99. It is great for hiking and camping also. You can clip it to your backpack. It is light-weight and it takes up very little space.
http://www.petco.com/product/120261/Dexas-Purple-Collapsible-Travel-Cup.aspx?cm_mmc=CSEMGooglePLA-_-Dog-_-Dexas-_-1561316&mr:trackingCode=B4517076-5402-E211-880E-001517384FBA&mr:referralID=NA&mr:device=c&mr:adType=plaonline&mr:ad=55967195053&mr:keyword=&mr:match=&mr:filter=81311534413&gclid=Cj0KEQiAgMKmBRDMjo_F9OfUubABEiQAp8Ky19Sqw5X2QWmHJLWUEWsJsFNZN8iAbtldRTVuxjJOU10aArub8P8HAQ
If you are looking for more capacity, try this one out from REI. Most of the time you get what you pay for...
http://www.rei.com/product/858693/ruffwear-bivy-pet-bowl-medium
I believe in buy once, cry once. One with a cinch:
http://www.rei.com/product/858695/ruffwear-bivy-cinch-pet-bowl
http://www.petco.com/product/120261/Dexas-Purple-Collapsible-Travel-Cup.aspx?cm_mmc=CSEMGooglePLA-_-Dog-_-Dexas-_-1561316&mr:trackingCode=B4517076-5402-E211-880E-001517384FBA&mr:referralID=NA&mr:device=c&mr:adType=plaonline&mr:ad=55967195053&mr:keyword=&mr:match=&mr:filter=81311534413&gclid=Cj0KEQiAgMKmBRDMjo_F9OfUubABEiQAp8Ky19Sqw5X2QWmHJLWUEWsJsFNZN8iAbtldRTVuxjJOU10aArub8P8HAQ
If you are looking for more capacity, try this one out from REI. Most of the time you get what you pay for...
http://www.rei.com/product/858693/ruffwear-bivy-pet-bowl-medium
I believe in buy once, cry once. One with a cinch:
http://www.rei.com/product/858695/ruffwear-bivy-cinch-pet-bowl