Repurposing one of the myriad of writing implements on your desk as a stylus for a touchscreen device shows some clever MacGyver-like adaptability. But bringing an indelible permanent marker like a Sharpie anywhere near your tablet or smartphone's screen is downright cringe-worthy—even if the business end is covered with one of these Stylus Caps.

Made from aircraft-grade aluminium with a firm rubber tip, the caps will easily outlast an entire office's worth of markers. But even the tiniest risk of accidentally taking an un-capped Sharpie to a device's screen has us a little anxious. So maybe it's best to only re-purpose markers that've completely dried out first. [More/Real via Fancy]