What's more useless: plastic shove-on attachments or boxing gloves with Wiimote pockets? We suppose those attachments are, but these 'un-official' Wii boxing gloves rank among the lamest of 3rd-party peripherals.
Maybe if you have a tendency to fling your Wiimote the gloves are $22 well spent; then again, Wii Sports' boxing requires players to hold the Wiimote vertically. You won't be punching with these gloves on; you'll be knocking on doors. Awkward.
A better Wii "Power Glove": Wii Remote Power Glove Hack