After not quite seven years, the acrylic caulk holding our garden dragonfly’s eyeballs in place lost its grip. Some cleaning of marbles and scuffing of copper sockets later, two rings of JB Kwik should do the trick:
It’s a family tradition, is all I can say …
The Smell of Molten Projects in the Morning 
No LEDs Ed ?
And photovoltaic panels on the wings …
Nothing lasts!