Please use as you wish, but do please credit me for the pattern.
I used a size E (3.25mm) hook and just some scrap yarn that I had lying around. Color doesn't matter, as it's not like we actually know what the virus really looks like anyway. Blue is my preceptor's favorite color so I used blue. This pattern is worked in the round.
Magic Ring (use google for some awesome tutorials)
Single crochet (sc)
chain (ch)increase (inc) - 2 sc in same stitch
decrease (dec) - Use this tutorial, if you are unsure
Slip Stitch (sl st)
Round 1: 2 sc in each stitch around
Round 2: (1 sc, inc in next stitch) around
Round 3: (1 sc, 1 sc, inc in next stitch) around
Round 4: (sc, sc, sc, inc) around
Round 5: (sc, sc, sc, sc, inc) around
Round 6-9: sc around
Round 10: (sc, sc, sc, sc, dec.) around
Round 11: (sc, sc, sc, dec) around
Begin stuffing and continue to stuff and shape to your desire as you go
Round 12: (sc, sc, dec) around
Round 13: (sc, dec) around
Round 14: dec around
Finish off, leave a long tail, weave around and use to close this opening.
I made 16 of these, but you could probably get by with as few as 12 or as many as you'd like.
sc in first ch from hook, chain 2, sc in 2nd chain from hook
go back to the main chain, and slip stitch through the remaining 3 chains. Tie off.
I honestly just tied the flags on sporadically, making sure they were evenly spaced.