Braided Net // Braided Quipu

The back faces of some cards with craft refer to cards "used to craft" it. This refers to the cards exiled as part of the cost of the craft ability of the front face. Those cards are considered to be "used to craft" that permanent as long as they remain exiled and the permanent remains on the battlefield, even if the permanent's controller changes or some of its characteristics change (because of a copy effect, for example.)

You may exile tokens you control as part of the materials required. However, because they aren't cards and won't stay in exile, any abilities that refer to what you "used to craft" the back faces won't refer to anything.

Braided Net's activated ability can target another nonland permanent that's already tapped.

After drawing cards for Braided Quipu's ability, if you have two or fewer cards in your library, you'll put Braided Quipu on the bottom of your library.