You Make!

For this build all you will need is the card and an Exacto blade (recommended) or a pair of scissors.

Take the card and cut it along the dashed line in the middle.

Carefully cut out all four pieces  from the card. Especially take care when cutting the legs as to not damage the feet.

Now that you have all four pieces cut out you can begin carving out the inserts.

On each part cut out the marked slits so that there is a ~1/32" gap.

Insert the hip piece onto the back of the Trex.

Add a leg onto either side of the hip piece so that the feet face forward.

Your Trex has been assembled! Give your friend a name. Enjoy!