3. 🎨 Whimsical Painted Cardboard Cat Castle

Why They’ll Love It: A cardboard kingdom that’s 100% royalty-approved.

Supplies:

  • Large cardboard boxes
  • Craft knife & glue
  • Acrylic paints or markers

How-To:
Construct towers, arches, and hideouts. Paint it in whimsical pastel shades with paw print decorations.