Indestructible Ball of String
A compact sphere of heavy-duty synthetic twill twine. Endlessly useful for lashing luggage to landing struts, rigging improvised splints, or tethering a towel.
Item Specification: Indestructible Ball of String

"For some reason, if a strag discovers that a hitchhiker has his towel with him, he will automatically assume that he is also in possession of a toothbrush, face flannel, soap, tin of biscuits, flask, compass, map, ball of string, gnat spray..."
— The Hitchhiker's Guide to the Galaxy, Chapter 3
The Indestructible Ball of String is a four-hundred-meter continuous spool of triple-ply braided aramid twine wound tightly into a fist-sized ball. While seemingly mundane in an era of anti-gravity repulsors and matter replicators, string remains one of the few low-tech inventions that simply cannot be improved upon.
Versatile Field Applications
Hitchhikers throughout the known cosmos find endless practical uses for a good ball of string:
- Cargo Lashing: Tying overloaded rucksacks and extra blankets to the exterior handrails of cargo shuttles before entering hyperspace.
- Towel Tethering: Tying one corner of your Massively Useful Towel to your belt loop so it cannot blow away in the thirty-mile-high dust storms of Kakrafoon.
- Spacewalk Lifeline: Tying one end to the handle of an airlock before stepping out into vacuum, just in case the ship's automatic tether mechanism decides to experience an existential crisis.
- Strag Adoration: Like the Toothbrush, producing a tidy ball of string from your pocket confirms to all watching strags that you are a delightfully resourceful person who has life thoroughly sorted out.
Babel Fish
Small, yellow, leech-like creature. Slipped into the ear, it feeds on unconscious brainwave energy and decodes all galactic dialects instantaneously.
Unattended Ballpoint Pen (Biro)
A ubiquitous writing instrument containing an internal ink reservoir and rolling ball tip. Famous across the Galaxy for slipping away through microscopic wormholes to lead a uniquely biroid lifestyle, fueling Zaphod Beeblebrox's lucrative second-hand stationery syndicate.