An artist mailed a non-verbal teen his favourite butterfly artwork after his excited reaction to it in the museum went viral.

Odin Frost, 19, was overjoyed when he saw a mechanical flipbook in a museum showing a butterfly flapping its wings - and even said the word "butterfly" for the first time.

Parents Tim and Deanda Frost, 38 and 41, recorded his sweet reaction and sent it to the artist himself, who then proceeded to mail the artwork to their home in Tyler, Texas, USA.

Tim said: "Odin just stared and obviously we were enamoured by it too, it's so beautiful.

"It totally soothes him.

"Now when you walk into our house it’s the very first thing you see."

Deanda suffered with preeclampsia when she was pregnant, and Odin was born three weeks early, suffering a bleed on the brain.

He has non verbal severe autism and while he can walk, he uses a wheelchair for long distances.

He doesn't speak very much, but understands fully what is going on around him.

The family visited the Tyler Museum of Art on March 9 2017 where there was a flora and fauna exhibition.

Tim said: "It was a free exhibit and Odin loves art so we were just strolling through and we only happened upon it.

"He said 'it’s a butterfly', he doesn’t speak a lot.

"He's non-verbal but can speak a few words, but butterfly is something he'd never said before."

Overjoyed themselves, they filmed his delighted reaction.

The clips in this video were filmed on the 9th March 2017 and 8th August 2019.