People think my zip tie is silly only until I have used it to aim in a second... and then I can even offer them a look through my scope without having to change the tripod height (and loosing the target) for each person.
Joachim,
Very valid for that application, but I'm guessing that if you have used an aiming device for years, you personally probably don't need it any longer.
Swarovski gave me an ATX aiming device for my ATM but I don't bother with it any more. My aiming problems are confined to the night sky and viewing the sun with a solar filter, both of which rule out cable tie type sights. Then I usually use an astro adapter and plop in a 28 mm RKE as a finder.
John