The dog tag ornaments I cut while my niece was napping (and why I'll never buy them again)

One 12x12 sheet of medium-weight chipboard, the kind that's about 1mm thick. I used Cricut's chipboard but the Michaels store-brand works the same and it's $4 for two sheets instead of $7 for one. You need a bone-shaped SVG, obviously. Ours is in the shop for $1.50 but any simple bone outline works, just make sure it doesn't have a million interior cut lines or you'll be weeding forever.

• One 12x12 chipboard sheet: $2-4
• Bone SVG (3-4 inch size works best): $1.50 or free from various sites
• Paint markers in 2-3 colors (Posca or Sharpie oil-based): $8 for a pack, you'll use two
• Twine or ribbon for hanging loops: $3, you need maybe two feet total
• Hole punch (the regular office kind): you already own this

Total spend if you're starting from zero is about $18. If you already have markers and twine, it's under five bucks. The leftover chipboard makes six more ornaments easy, so the per-unit cost is stupid low.

Here's where I messed up the first time. I made the bones 5 inches wide because that felt right. Wrong. At 5 inches I could only fit three on the mat and I wanted to make at least four. I resized to 3.5 inches wide and suddenly I had room for six bones in two rows of three, with enough margin that the blade wouldn't skip at the edges.

In Cricut Design Space, arrange them in a grid. Leave at least half an inch between each bone and a full inch from the mat edges. Chipboard is thicker than cardstock and the blade needs space to enter and exit cleanly. I learned this by watching the blade drag and tear the corner of bone number two.