Amazon has a bunch of fish tank ornaments for sale. Lowest per CCC.
Penn Plax Dragon Guardians Aquarium Ornament Green Medium – $2.38
GloFish Treasure Chest Ornament for Aquarium, Small- $2.42
GloFish Barrels Ornament for Aquarium Environment, Small – $1.79
Penn Plax Stone Replica Aquarium Decoration – $3.87
GloFish Castle Ornament for Aquarium – $3.32
Penn Plax Paw Patrol (Officially Licensed) Mini Aquarium Ornaments – $1.16
GloFish Unique Fluorescent Plant for Aquarium Decoration – $0.98
Penn Plax Paw Patrol (Officially Licensed) Mini Aquarium Ornaments – $1.33