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For the flamethrower, a blue igniter flame and/or a "restful" flame would be cool. Difficult to do well though. Being able to light these effects would be the best, but then we're talking fibre optics, and more the realm of customs than retail.
The flame piece we get is better than nothing, but too short for me. I know it's a practical thing, weigh and size. It could be done with multiple pieces that fit together, but you would need a stand to hold it up.
This is a good recent example:
Another way you could go, would be a large diorama piece, a "flame wash" effect that could sit on top/balance on eggs, to recreate the scene below.
This would be a perfect addition to a super deluxe queen hive diorama set. You could even have extra "egg topper" pieces for individual burning eggs.
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