The subject tells it all. I'm considering building a BFG fleet out of all of the Tyranid bits I have left over. Here are my ideas:
-The drones could be made fairly easily out of greenstuff and genestealer or hormagaunt scything talons.
-Razorfiend could be made with the large warrior talons, greenstuff, and various monstrous creature/warrior bits.
-Hive ship looks like a lot of greenstuff, plus spare carnifex back carapace, plus various bits and stuff.
So that you can provide suggestions for this project, I guess I should let you know what bits I have. Basically I have tons of bits from just about every plastic Nid kit, especially weapons and biomorphs. I have several spare gaunts and hormagaunts that could be turned into ships or parts of them. I have tons of unused rippers. I also have spare bits from IG tanks and heavy weapons that might be put to use as the basis of some of these ships...
What do you think? Also, I have some questions and favors to ask.
-Does anyone know what the hell a Kraken looks like? It's listed in the PDF, but there's no picture or model for it...
-Could anyone help me figure out how big these ships are? I don't have access to any Tyranid ship models and I'm not too familiar with BFG in the first place. Measurements and base sizes would be great, but pictures of actual ships would be super.
-I'm going to assume that since they're Tyranids my ships don't have to look EXACTLY like the GW models, right?
EDIT:
I just thew together a drone ship and it turned out decent looking. I have enough bits to make 10 of these and it was really easy.