Students in the class work in muslin and won’t be eligible to submit pieces for the school runway show at the end of the year, so this way they can go public. Chevon McClenney, above, outfitted her maple tree in a ruffled skirt with a tiered-cummerbund bow around the waist — err, trunk — and secured the side with Velcro. “If Cristo can drape Central Park in saffron panels,” Swartz says, “we can do this in Maymont.” S