There are several ways to create burning filament photos, but the most important thing is to break the vacuum seal without damaging the filament. You can tap a crack, drill a hole, or break all the glass using a plastic bag. Keep in mind that the more air allowed in, the faster the filament will burn out.
You need an electric source you can turn on and off. You can use a lamp or you can pick up these little plug in sockets at most hardware store for about $2 each. Plug the socket into a power strip with an on/off switch so you can better control your timing.
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