Start with a paper cup and scissors.
Cut off the lip of your cup. This is the part of the cup you drink from.
Paint the outside of the paper cup orange.
While the paint of your cup dries, cut a bunch of short pieces of yarn approximately an inch long. An easy way to do this is to wrap the yarn around two fingers a bunch of times. Pull the circle of yarn off your fingers and make a cut on each end of the circle.
Start by placing a line of glue toward the bottom of the cup (where you cut), and then place the piece of yarn along the glue so it hangs off the bottom. Once you've made your way around the cup, add another layer halfway up the cup, and then a final layer at the top of the cup.
Using the end of the scissors, poke two slits into the top of the paper cup towards the outside.
Glue a googly eye to the end of a craft stick. Do this for two craft sticks.
Place each of your monster eye craft sticks into each of the slits at the top of your paper cup. If they are moving around, place some glue around the holes to secure them in place.
Grab a black piece of paper as well as a piece of white paper. Cut out an oval shape for the monster's mouth out of the black paper, and cut small triangles out of the white paper as teeth.
Glue the white teeth to the black piece of paper in whatever fun way you like.
Lastly, glue the mouth to the front of your monster's face.
Viola, you have adorable little monsters.