oneshare.com seems like it's pricey, but if you are only purchasing that one share to gift/frame, then it's going to cost about the same as opening a brokerage account and getting a certificate issued. I am a registered rep at a major wall street wirehouse and our commission minimum is $55, and we charge $25 to issue a certificate (it used to be free, but now they even charge the employees...). Commission is lower at the online trading firms, but their certificate issue fee is generally higher. Also, you might have to contend with account opening minimums, as well as tons of paperwork (we have had to flood our clients' mailboxes due to new privacy act and patriot act stuff).
Keep in mind, also, that if you do have a share issued out, that you will receive a check for dividends each quarter (if issued). I think the last quarter was 14 cents or something, and at the end of the year, that dividend should be reported on your tax return....