Today, I had my first school visit as a published author. Wahoo!!! (Shameless self-promotion: 
DEAR SANTASAURUS is out on October 1st.)
I knew I needed something special to wear. I wanted to dress the part.  After hitting the mall, I decided I could make my own outfit for the big day.
And here it is...
|  | 
| Modeled by my lovely daughter | 
Would you like to make your own Spinosaurus costume for Halloween or just to scare the dog? (It really makes my dog nervous when I wear this. Not sure why?)
Here's how I made mine...
First. The supplies: a green hoodie, colored felt, interfacing (for stiffness), thread, scissors, glue, cardboard to make a pattern.
|  | 
| Not all supplies are shown. I don't want to make it too easy. | 
Iron the stiff interfacing to the felt. Follow the directions on the interfacing. I didn't and got white goo on my iron. Luckily, I don't use my iron much.
|  | 
| Ironing - something new to me | 
Create a spine pattern, trace (mirror trace) and cut. Leave a 1-2 inch space between the spines for thickness at the bottom.
|  | 
| The pattern made from an old Amazon box. | 
|  | 
| Traced, then mirrored and traced. Notice the gap. | 
Pin and then sew. Sewing in a straight line is optional.
|  | 
| Use more pins than I did. I was lazy. It was a mess. | 
|  | 
| The lines are kinda straight. | 
Trim back the edge of the interfacing. I did this in the picture above. If not, the felt and the interfacing are too thick to sew through.
Next, pull the outside of the spine together and sew.
|  | 
| Lots of pins! | 
|  | 
| Sew together in harmony | 
Then I added a few stitched lined for texture. I didn't want to look like turtle. That wouldn't be cool.
|  | 
| Not a turtle shell | 
Things get easier now as I add teeth.
|  | 
| Teeth pattern - I recommend a triangle. A circle or a square would look odd. | 
|  | 
| Pin and sew. | 
And finally eyes. (The white is self-sticking.)
|  | 
| Circles are good for eyes | 
|  | 
| I used the spool as a pattern for the pupil | 
|  | 
| The scary head | 
I did put a few hand stitches in the pupil. I didn't want to lose an eyeball.  
And that is my dinosaur outfit!