Thank you Steve, your advice certainly does help

The set up has taken me longer than i thought it would, but i've enjoyed it. It's helped pass the time till 'S day' [no prizes!]

The LED lights actually have a decent 3M self adhesive strip all down the back, it's pretty firmly stuck. There's no need for any other tape. Does that sound better? Perhaps i can also use screw in type fasteners as a fail safe?

Stu