Mars Attacks! terrain: filling the gaps

I don't like very much the empty connector holes in Mars Attacks! terrain, they doesn't look too bad on the Deadzone Battlezones but on the tiles for Mars Attacks! they looks somehow out of place... 
What I did to fix them is quite simple: 

1. I made a mould using Instant Mold 
2. I filled the empty connectors with green stuff and 
3. I used the moulds to print it with the same texture of the rest of the wall, check the picture below for the final result