Zebra Technologies offers "next-day shipment" on an enormous variety of barcode printer media stock, and it is offered through the Zebra ZIp Ship Program.

All Thermal Transfer and Direct Thermal Media Products available through the Zebra Zip Ship Program (pdf)

Zebra Tabletop Printer Labels
S Series, Z Series, XIII Series, E Series, SL Series and SE Series

Zebra Desktop Printer Labels
LP Series, TLP Series

Zebra Mobile Printer Labels