Please help me find this tie for DH's birthday - I know, I'm looney

[Clumsymum]

A couple of weeks ago DH was watching TV and really raved about the tie that the presenter was wearing.
I have spent the last hour searching online for the tie, but can't find it. I've looked on lots of shirt-sellers

The program was EITHER mastermind (John Humphries), or QI (Stephen Fry) - I can't remember which. The tie had narrow multicoloured stripes (bright rainbow colours), each separated by a white background. DH liked it because it was white and bright.

It's his 50th birthday, and I have vowed to try and get him a few things that I KNOW he really likes.

Does anyone's OH have a tie like this? Where did it come from ?

Thanks in advance

[TheWoollybacksWife]

Is it like this one? Rainbow Tie

[Clumsymum]

Thanks Woolly,That is kind of similar, but not the same. I don't think the one DH saw had Lime green on it

Not quite it.

[TheWoollybacksWife]

This Etsy seller is showing rainbow ties. These are for small boys but the listing says to contact the seller for adult sizes.

Would writing or emailing the BBC costume department be an option?