Libertad!

Special order, Mafalda's friend, Libertad, on a ring:

Mafalda pendant

A sleepy Mafalda, in a pendant. 

Ideal jewelry for work, every Monday morning ...

https://www.etsy.com/listing/175842408/sleepy-mafalda-necklace-comic-jewelry

And for those who are still sleepy, a matching ring:

Mafalda

My favorite comic by Quino, on a series of rings:

https://www.etsy.com/listing/175770151/mafalda-quino-comic-ring-retro

https://www.etsy.com/listing/163109572/mafalda-comic-ring-quino-retro