Amazon has the following:
Ponanic Collapsible Dog Bowl, Silicone Foldable Dog Bowl Cup Dish for Food Water Feed Travel Walking Hiking Camping Dog Park with Carabiners, Blue/Green, 2 Piece – $1.85 after clipping coupon.
https://www.amazon.com/gp/product…t-supplies
Ponanic Collapsible Bowl, Food Grade Silicone BPA Free FDA Approved, Portable, Foldable, Expandable, Cup Dish for Pet Dog/Cat Food Water On Camping, Hiking Feeding Free Carabiner $1.83 (Add-On).
https://www.amazon.com/gp/product…t-supplies