Balloons!

Congratulations! :-)

View attached image.

Happy steam birthday :)

bump

Happy steam cake day!

Excuse me sir, I think you might have a bump right here.
(Or maybe it's just a balloon!)

Happy steam cakeday, d3m4n. Thanks for the train.

Bump and thanks :)

Bump!

Bump

Thanks a lot for choooo chooo!

Bump

Happy steam birthday! 13 Years of Service Badge is the real cool one, you are so close :)