The pieces are made of a hard plastic, similar to Bakelite, and the graphics are applied via a 4 color heat transfer process, which fuses the images to the plastic in a way that makes them very scratch resistant, meaning they should last a lifetime.
One set of GeekUp tokens for Quacks of Quedlinburg: The Herb Witches Expansion includes 169 ingredient tokens with a custom shape (all 4mm thick) and in the same distribution at the original cardboard bits in the expansion:
Ingredients for a 5th player:
White Bombs (1's = 6, 2's = 3, 3's = 2)
This includes the one extra white chip of each value for the 5th player
Red Toadstools (1's = 6, 2's = 5, 4's = 5)
Orange Pumpkins (1's = 12)
Yellow Mandrakes (1's = 6, 2's = 5, 4's = 5)
Green Garden Spiders (1's = 10, 2's = 5, 4's = 5)
Blue Crow Skulls (1's = 8, 2's = 5, 4's = 5)
Purple Ghost's Breath (1's = 8)
Black African Death’s Head Hawkmoth (1's = 8)
New pieces unique to Herb Witches:
20, 6-value pumpkins
25 Locoweed, a.k.a. Fool's Herb (new ingredient)
15 Witches pennies. 5 of each for the copper, silver, and gold witch