How to Make Your Own Shark-Style Trunk-or-Treat Halloween Decoration

Create a jaw-some shark trunk-or-treat decoration with foam boards and a few simple tools.

Easy

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Learn how to build a shark-themed trunk-or-treat decoration using foam core boards, dowel rods, and paint. This project features a shark snout, teeth, and layered ocean waves, plus a red sheet for the mouth and luau decor. Perfect for Halloween car events.

Directions

Get one white foam core board on your cutting mat and sketch a shark snout by hand. Cut along your drawn line with a utility knife and put aside the leftover. Place the second white board on the mat—this one is for the teeth. To get both upper and lower teeth from a single board, plan the cuts carefully and then cut along your marks. Now take your two light blue boards and use a plastic plate to trace a wave shape across the top of each board. Do the same with the two blue and two dark blue boards. Cut along the wave lines for all six boards. For each color, tape the two matching wave-cut boards together so they form one long wave that spans the trunk width. Then stack the three colored wave strips in any order you like to create your faux ocean waves.