Squirrels are preferred, but any token will do
Consign to Dream, Expel from Orazca, Primal Command, and Memory Lapse can all return cards to their owners library, ready for you to fetch with Pako
Alternatively, your Deck also include Judy Hopps, Uncovering Clues that we mentioned early and that will help fishing out more Detective cards from the Deck
Oh, and it won't cost you an arm and a leg like Wrenn and Six
Youll see plenty of Food and Clue tokens and a commander that actually cares about the distinction between Treasure and Gold tokens
That's a powerful way to ramp up your mana base with some mana-producing artifacts, or you could just have two Darksteel Colossuses bouncing around