It seems that an idle mind is also a Halo 3 Forge mode workshop (take THAT, the devil) as Capcom Member TriCEVEN has demonstrated here .

Says TriCeven :

I was bored last night and decided to pay a little tribute to Capcom-unity in a special way… with Halo 3! I created a MONSTER sized Unity tribute in the forge mode, and took some pictures. ^_^

Awesome work! We’re so proud! *sniff*