I love this new set available today from Mark's Finest Papers. All of the MFP sets have such wonderful versatility for year round use.
This set is called Flourished Sea Creatures and I used the sentiment, bubbles, seaweed for the base. The base of the treat holder is two square Sizzix dies with the bottom folded down, a hole punched in the middle and a small holder box inside (see following picture for a side view). I filled a cello bag with multi-colored gummy fish to match the fish stamp on the tag.