HONOLULU, HI - Island Slipper, the last remaining original manufacturer of made-in-Hawaii footwear, is set to open Island Slipper Store at Ward Warehouse on April 1, 2011. There will be a Grand Opening celebration on Saturday, April 16 with live in-store performances by Makana, Jeff Peterson, Puamana, and Ernie Cruz, Jr. "We're calling it a Slippahpalooza, " joked owner John Carpenter. The new...