A solid tamper is so essential that it can scarcely be considered an espresso accessory. Outside of the machine and the grinder, your tamp will have the largest effect on the quality of your espresso. 
Wood Tamper

Wood Tamper

From $75

Espresso accessories package with Rattleware Tamper - Product Image

Espresso Accessories Package

From $130

Rattleware Round Handled Tamper from Clive Coffee - Product Image

Rattleware Round Handled Tamper

$39

ECM Tamper Station

ECM Tamper Station

$60

Rattleware Aluminum Tamper from Clive Coffee - Product Image

Rattleware Aluminum Tamper

$20

Saint Anthony Industries BT Wedge Distribution Tool, Upright - knockout

Saint Anthony Industries BT Wedge Distribution Tool

$139

Saint Anthony Industries New Levy Tamp

Saint Anthony Industries New Levy Tamp

$139

ECM Flat Tamper

ECM Flat Tamper

$59

ECM Pressure Regulated Tampers from Clive Coffee - Product Image

ECM 58mm Pressure Regulated Tamper

$85

ECM Convex Tamper

ECM Convex Tamper

$59