Wow! Those are great examples! I have a whole line of t-shirts worked out for ancient art history geeks - but everybody I ever told about it looked at me like I had boogers on my face. :(
But - I see a whole line of women's t-shirts with these tech slogans right at the appropriate 'height' to draw attention. I generally respect men who appreciate geeky women - it means they're not just in it for the breast, waist to hip ratio...although that helps...