Shirts I have:
Birds and Bees
Biblical Disaster
Frida's Garden
Peaceful Future
Take A Hike
Permafrost Pollution
Gay Pride
Mechanical Mayhem
Fossil Fuels
Strength in Numbers
Bunny and Gopher
Octopus
Ascending Descent
Stabby McKnife
Finding Rhinoceros
Sock Battle
When Dinosaurs Ruled the Earth
Collateral Damage
Mister Choppy
Brazilian Spirit
Adorable Disaster
Lochness Imposter
Rocketbird
Birds of a Feather
Byebi
Infinity MPG
Someday
Magic is Just the Stuff Science Hasn't Made Boring Yet
Peaceful Future
Everyone Poops
Birds and the Bees
Nuts
We Are Made of Carbon
Collateral Damage
Running Rhino
Away from Home
Delivery
BEarth
Serenade