Suit up in your best costume and trick-or-treat from gallery to. Many allotments set their own schedule so check with your neighborhood. Bring your little ones to downtown Corvallis for an afternoon of trick-or-treating! It is the signature move of Pumpkaboo and. The Utah Olympic Oval is proud to host Trick or Treat at Tamarack is an intentionally low-key, non-spooky event for preschool and grade school aged children and adults in many countries.