ambigram is word will still read that word if rotated 180 degrees. it's amazing. you can use this on any media often flip, like wedding invitation, smartphone media, tatto, t-shirt and many other media.
What are you waiting for ? Get this amazing ambigram right now only $5 :)
note: - for two words, try not too much difference letter, max 2 letter difference. I could do it, but it becomes one word, like "be here" to "BeHere" or "tru nobilis" to "TruNobilis" - it would be better if you include references or describes your desire - revision excluding changes in words or letters.