A camera shutter has a base plate provided with a shutter opening. More specifically, but not by of limitation, embodiments of the present invention provide methods and systems for electronically receipting POS transactions and, in some embodiments, of providing the electronic receipts to a destination selected by a party to the POS transaction. The combining is carried out under a condition sufficient to prevent or minimize the reduction of impact strength of the blend, to reduce the molten viscosity of the blend, or to minimize the loss in stiffness of the blend, in comparison to the unmodified blend.