| TRACK MOLD COLLECTION: Set of 52 Track Molds. Use the track casts you make from these molds as instructional aids that you can press into moist sand or dirt to make track patterns. Have students cast their own for displays that they can share and take home. Made from flexible vinyl polymers, these non-toxic, life-size molds can be filled with clay or PerfectCast®, the durable replica compound used by museum professionals (also available from Acorn Naturalists). Occasionally clean with soapy cleanser or detergent. This collection of track molds includes eight birds and forty-four mammals as follows: blue jay and woodpecker, crow, duck, eagle, goose, great horned owl, grebe, pheasant, armadillo, badger, beaver, bison, black bear (adult), black bear (yearling), bobcat, caribou, cottontail rabbit, cougar, cow, coyote, domestic cat, domestic dog, domestic pig, domestic sheep, elk, fisher, gray fox, gray squirrel, horse (colt), jack rabbit, javelina, mink, moose (adult), moose (yearling), mouse, muskrat, Norway rat, opossum, porcupine, pronghorn antelope, raccoon, red fox, river otter, sea otter, snowshoe hare, spotted skunk, striped skunk, weasel, whitetail deer, wolf, wolverine, and woodchuck. #MO-22235.