"It's me, Marva! You know what I'm here for: Providing a reliable source of gravel! With novel deals at every level there’s no need to grovel for gravel. Each piece is one-of-a-kind and highly collectible! Hatchlings love a good, loose aggregation of rock fragments. Gravel will keep their tiny terror teeth polished and off your furniture! Hours and hours of endless fun at home! Gravel castles, hide and seek, search and res—ahem. Gravel's great for the adults too! Need a statement piece in your lair? -Pile of gravel. Need to garnish a dish to impress the neighbors? -Monosodium Gravel. What can't it do!?"
"It's a combination of Spleef and Leaves, since they grow like leaves on the weird copper tree structure you find on the moon."