Please invite Rick Berman. These tweets are from last year but it's still worth a shot!
*https://twitter.com/berman_rick/status/630226341284089856
*https://twitter.com/berman_rick/status/630621025114304512
Like the others said Shatner did definitely do personalisations. I was third in the line on Saturday at DSTL 2013 and I got him to write down the quote "To Boldy Go" which was awesome.