Pyrkol created some new acrylic fire and smoke indicators and has them available via their eBay shop.
From the announcement:
For us each indicator is a design challenge.
The indicators can be separated into three parts portraying the three phases of the fire/smoke WWI rules, they can also be mixed and matched in multiple fire and smoke configurations.
To use simply assemble 3 flames or 3 smoke markers and fit them over an altitude peg, then each turn remove one flame or smoke part untill the fire or smoke is extinguished.