These are a few of the skulls I have available right now. I also some smaller pieces (around 2.5 inches) if you are interested.

Brecciated Jasper (24.5 ounces, 4.2 x 3.0 x 2.7 inches)

Very Large Clear Quartz Crystal with Rainbows (36 ounces, 4.7 x 3.5 x 3.2 inches)

Sliver Lace (28 ounces, 4.3 x 3.1 x 2.8 inches)

Rare Tiger iron (41.5 ounces, 4.4 x 3.2 x 3.1 inches)