I have multiple of these boom arms [1] clamped all around my desk. Great for things that require frequent fiddling (webcams / mics / lighting)
https://www.ulanzi.com/collections/desk-set-up/products/viji...
https://www.ulanzi.com/collections/desk-set-up/products/viji...
all easily obtainable at a generic hardware store and requiring only a hand drill