Tiny jubilee clips

Anyone know a source for tiny jubilee clips - small enough for E30 wiper fluid hoses? I spoke to BMW yonks ago and they said they no longer have them and advised using little black eletrical ties  which are impossible to tighten eniough I think. I replaced some fluid tubes recently and one pipe near the engine has already expanded and of course has shot off the connector causing all the intensive wash fluid to be lost - just refilled with fresh stuff too 

For the washer fluid pipes use a small piece of soft iron wire and wrap it around the pipe, twist it tight with pliers and the pipe should stay put.  Don't bother with jubilees on something so low pressure.