As appealing as dripping with diamonds sounds, it’s really not a practical or economical way to accessorize.We’ve got something much less draining on your pocketbook to leak: Elena Estaun aces hardware. The Spanish artist found her niche transforming common tools into fascinating jewelry. Studies at Central Saint Martins combined with a love of everyday objects result in cool pieces that transcend their humble origins.Washers strung on colorful leather cords form paradoxically feminine bracelets. Appreciate getting hosed for once with a black rubber tube wristlet clasped with a pipe fastener. Or slip the lacy-looking rubber o-ring cuff around your arm.That’s the nuts and bolts of it.All that’s left is for you to take the plunge.Available at Totokaelo, 913 Western Avenue (206-623-3582 or totokaelo.com). To see styles, go to elenaestaun.com.