What you need:
4 Tent Pegs
1 Hiking pole
A type of guyline[I used 10ft of paracord]
Step 1: The model
I marked the paper with a Sharpie where the grommets are.
Since I didn't want to add grommets I cut it on the dot in the boxes that are on the picture and made a triangle.
Then I folded the paper in half.
This is the model I went off of.
Step 2: Cutting the tarp
Next thing you do is cut the lines with the scissors. Make sure that you cut on the outside of the grommets instead of the inside ans that you leave some of the tarp around the grommets.