Toothpicks seem to work just fine. Just be sure to not stab yourself in the cheek.
Scissors look pretty weird and have the added risk of accidentally chopping off part of your beard. Only for the experts.
Pencils. Pretty much like toothpicks, but with the added bonus of being able to take notes and erase them as you please.
Straws are the go-to beard material if you want to let people taste your beard juices.