Pegasus:
If you have some spare time for playing a bit try placing the cups in the normal position, fill with sand attach tongue depressors or similar acting like posts pointing up from the cup, take a rubber band and "crazy-glue it" stretched to depressors, the rubber band will be the contact point to the cable. Use this variation and let's see how it goes in your system.
If you have some spare time for playing a bit try placing the cups in the normal position, fill with sand attach tongue depressors or similar acting like posts pointing up from the cup, take a rubber band and "crazy-glue it" stretched to depressors, the rubber band will be the contact point to the cable. Use this variation and let's see how it goes in your system.