We don't include the invoice in orders, just a packaging slip that has a list of the items that are included in the box (this does not show any prices).
We do ship inventory from the shop and items may have a price sticker on. If your item is a gift please leave a note when checking out and we will do our best to remove any prices. Please note that if you contact us about this after placing the order, it may be too late for us to remove prices.