Step 2: Make the harness
The tentacles will dangle from the yarn running under your nose, sort of like a mustache made of awesome.
Step 3: Make the tentacles
Now, take each tentacle and drape it over the harness with an uneven number of rigatoni on each side (e.g. three on one side and four on the other) and then wrap the strand around the harness a couple of times to that it doesn't pop off while you're jumping up and down in the movie line.
Nobody likes a flying tentacle.