Keep track of your materials in the Stash

List the foam, filament, fabric and paint you already have, tie them to Piece Forge materials so costing uses yours first, and record what you use, put back and buy.

CosplayersUpdated October 11, 2026

~4 min
New to it

The Stash is what's already on your shelf: foam offcuts, filament, fabric, wigs, paint. It's yours alone.

Before you start

Nothing — the Stash is free. Have rough amounts to hand.

Add what you have

Open the Stash
On My Builds, press Stash →.
Say what it is
What it is (such as EVA foam offcuts) and a Category: Foam, Thermoplastic, Filament, Resin, Fabric, Wigs, Paint & finishes, Hardware or Other.
Tie it to a material (optional)
Under Piece Forge material, pick the material it is. The Unit is then set for you, and Piece Forge's Cost tab uses yours before it prices any. Leave it at Not a priced material for anything else.
Count it
On hand — how much you have — and a Note if you like. Press Add to stash.

Check it worked

It's under on the shelf, in its category. A tied item says Piece Forge uses it for ….

Record what changes

Press ±
On the item, press ± and type the amount.
Say what happened
Used, Put back leftovers, Bought more, or — after a count — Set to this.

Check it worked

The amount changes, and where it went lists the change — Used … of … on … names the piece when Piece Forge used it.

✎ edits an item; ✕ removes it with its history.

If something's off

“There isn't that much in the stash.”: You tried to use more than you have. Recount and use Set to this.
Used is greyed out: The amount is more than you have.

Still stuck? Browse all help or contact us. To report someone or something, use the report action on the relevant profile, post, or session — it sends us the context automatically.