This sounds like it would be tacky, but it's surprisingly touching:

Nice that it was a spontaneous idea by his family.Seb, 26, who bore an amazing resemblance to Dr Who actor David Tennant, died from head injuries after a fall at a friend’s barbecue.
His parents knew he would not want sombre music or a religious ceremony, so they arranged a funeral that celebrated his love of the show.
So the 200 mourners who arrived at the crematorium yesterday were handed a service card with a picture of Seb dressed as Tennant and holding the Doctor’s sonic screwdriver
Emblazoned across the glossy card were the words: “I’m a Time Lord – I’m not a human being. I walk in eternity.”
