Bucket tube clamp

I was tired of the siphon tube flopping out of the bucket and making a mess when doing water changes for my fish tanks.  I tried a couple tube holder models, but none worked with my particular bucket.  My solution was to make a more-or-less universal clamp that should fit on any bucket.  It works with my weird 2.5gal bucket for water changes, and it fits just fine on a standard 5gal bucket. 

Printed just fine for me in PLA without supports.  YMMV depending on your part cooling capabilities and material used.