I'd definitely use the nn
Theo with it, but I love the full name as well.
Theodore Elliott is a great combo, very nice!
Adoring: Fiona Scarlett, Violet Isadora, Atticus James, Charlotte Octavia, Simon Frederick,
Felix Sebastian, Jack Lachlan, Alistair Conor, Jasper Milo,
Milo Conrad, Josephine Arabella, Imogen Victoria, Georgiana Scarlett