I used to collect them in a large glass jar, to try and get over my fear of them.
only for tha small spiders. I now live in a country where the spiders are too big to get into any jar.
Spiders can walk upwards on glass so plastic would be easy
Lol... Then I need to try but in theory he should get more grip than on glass and they have grip walking on glass... But you know that's kinda harmfull to them...