Well the you are my Shefford one might not be too bad, we have to fill up 30 seconds after all. We could start with a...

"ESSS" ("esss")
"AITCH" ("aitch")
"EEEE" ("eee")
"EFFF" ("efff")
"EFFF" ("efff")
"EFFF" ("efff")
"EFFF" ("efff")
"OHH" ("ohh")
"ARR" ("arr")
"DEE" ("dee")

"You are my Shefford..." and end it with a good hard "la la la laaaaaa-la..."

What I've said is that they're gonna phone me between 7 and 7.30 tomorrow night and we'll do one over the phone and then we'll record a few WAVs on a laptop so I can email them to her on Friday, they can then pick the best one.