Instead of tiles could you use stone chips? Some wholesalers here will let you take the chips from their landscape rock piles for FREE and there are some prettiful colours and some that are swirly and quartz and mica are sparkly. Gotta luv those guys or you can smash a prettiful rock with a sledge hammer to make chips (good stress reliever too )
or you can smash a prettiful rock with a sledge hammer to make chips (good stress reliever too 
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