As well as having such a great name for a brand - Nahvalur, the Icelandic translation of their former name, Narwhal - this New Jersey company offers a range of really striking pens.

And it's even more striking in the Firework edition, with an aluminium barrel covered in brightly coloured anodised pattern in red, blue, copper and gold. It's created to celebrate the 250th anniversary of the USA. The process means each pen will be a little different.

The Nautilus collection features Nahvalur's proprietary ink windows with three intricate windows carved into the pen's barrel. Features a piston filling mechanism. Stainless steel nib.

Supplied with filling instructions. Presented in a lidded gift box.