When Claire D'Loon, Joy Sculptor enters, for the rest of the game, tokens you own become cards that are still tokens. (They continue to exist after they leave the battlefield.)
{1}{W}{U}, {T}: You may put a token from your graveyard or hand onto the battlefield.

She'll sculpt goblins, saprolings, Marit Lage . . . though that one takes a *lot* of balloons.