In many cases, an implied permission to use an ink-pad stamp won’t be limited just to making items for private and domestic use. Check, however, for any express limitations such as “for non-commercial use only” (for example, on the packaging which accompanied the stamp).

Also, it’s unlikely that any implied permission will extend beyond using the stamp itself to decorate items. This means that you will usually need permission if you want to copy the design on the stamp into a printer or into other manufacturing equipment in order to decorate the items you want to sell.

If you need permission, the maker of the stamp will often be the first point of contact.