For owners of the HPS140i…
Having just bought an HPS140i and wishing to protect it from life’s knocks when not in use, I decided to find a quality soft case for it that does not increase it’s bulk significantly. I recommend that you take your HPS140i to your local camera shop and try it in some digital camera cases. You will find that it is a similar size and there is a vast range of well padded cases available from companies like Samsonite “Treking” and LowePro. The cases come in all manner of formats, some with extra pockets, others without. For the money they appear good value and perfect for the protection of your little scope 
I am currently searching for a nice compact X1/X10 scope probe as the commonly available items are a little too long for easy storage with the compact HPS140. Tektronix made some very compact probes so I will kep an eye open on the auction sites.
Fraser