De Atramentis Jacob Fugger, Purple Violet Dutch Ink Kaweco's classic octagonal-shaped pocket fountain

Kaweco's classic octagonal-shaped pocket fountain pen in green plastic is a great option for you

Heat resistant: Yes

which tends to be higher in tannin

Diamine Inferno Orange from the 2016 Shimmertastic collection is a bold warm toned orange fountain pen ink with low shading and gold shimmer

Umber/olive green fountain pen ink from DeAtramentis

De Atramentis Jacob Fugger, Purple Violet Dutch Ink Kaweco's classic octagonal-shaped pocket fountainPurple ink from DeAtramentis, handmade in Germany. This ink is a purple violet Jakob Fugger of the Lily, also known as Jakob Fugger the Rich or sometimes Jakob II, was a major merchant, mining entrepreneur and banker of Europe. Note: the ink label may sometimes read "Magenta Violet." This ink is made by hand in small batches, therefore there could be some color variation between bottles of ink.