Blue Ghost,
Apologies for the inconvenience. The Twitter links are working for me when I am logged into Twitter and when I am not logged into Twitter.
You should be able to go to the Twitter accounts directly and search for the tweets with the images. I am doing this as I write this message and I am not logged into Twitter.
Chris Burke (@mrburkemath)
https://twitter.com/mrburkemath
Car Combat Central (@carcombat)
https://twitter.com/carcombat