The Scent Republik Cities Fragrance Pen (£12.50 each) may look like a liquid liner, but the fragrance solution the black felt tip is soaked in is completely clear. Available in three scents — all of which are inspired by cities around the world (London, Tokyo, and Los Angeles) — the formula is cruelty-free, phthalate, paraben, and gluten free, meaning you should feel safe to scribble these scented pens on your wrists and neck with abandon.