Hey, Ferb! I know what we're going to do for Christmas!

The Mom, They Built Christmas! Tee celebrates the wildly imaginative world of Phineas and Ferb with a festive twist that would make even the most ambitious backyard invention look small.

Inspired by the brothers who never let an ordinary day stay ordinary, this colorful design features a towering Christmas tree wrapped in a winding track, construction cranes, oversized ornaments, twinkling lights, and plenty of holiday engineering. It's everything you'd expect when two creative brothers decide to take Christmas decorating to a whole new level.

And because no Phineas and Ferb adventure would be complete without a little mystery, keep an eye on the bushes—Perry the Platypus is hiding in plain sight! It's a fun little Easter egg for fans who know there's always more happening in the backyard than meets the eye.

With bold retro lettering, playful cartoon details, and plenty of holiday spirit, this tee is a nostalgic nod to childhood adventures, impossible inventions, and the magic of making the extraordinary happen.

Perfect for Phineas and Ferb fans, Disney adults, holiday park visits, Christmas parties, and anyone who believes there's always time for one more outrageous project.

Because when Phineas and Ferb build Christmas, even Perry has to stick around to see what happens.

Keep your Park Boxes tee looking its best:

• Wash inside out in cold water with mild detergent.
  
• Use a gentle cycle when possible.
  
• Air-dry or tumble-dry on low heat.
  
• Avoid washing with heavy fabrics to help protect the print.
  

Made from premium ring-spun cotton, our tees are lightweight, soft, and designed to get even more comfortable with every wash.

Shipping & Returns

We want you to love your order. If your item arrives damaged, defective, or incorrect, contact us within 30 days of purchase with your order number (and photos if applicable), and we'll gladly provide a replacement or refund.

• Free shipping on orders over $75
  
• Processing: 1–3 business days (may be longer during new drops or peak seasons)
  
• Delivery: Typically 4–7 business days after shipment
  
• Tracking: Sent by email as soon as your order ships
  
• Secure Checkout: All payments are encrypted and securely processed
  

Delivery times are estimates and may be affected by carrier delays or weather.