Here's me entry, me bucko, t' Vampyre.  Actually, matey, arrr, the original name was 'Ted's Testbed', shiver me timbers, but someone already stole that name. <G>

It's a simple ringfin and a super stable flyer that gets great altitude on mini-engines.  Definitely use a streamer on this one.  T' chrome strips are muffler tape from t' local auto parts store.

Ted

Part Descriptions
BT-5  10"
BT-20  4"
BT-80  3/4"
NC-20  Estes Yankee type (short conical)
Fin stock 1/16" Balsa
Paper transition shroud
CR5/20 centerin' rings (need 2)
Engine Block
Launch lugs, matey, shock cord, ya bilge rat, streamer

Notes
T' diagrams are (obviously) NOT t' scale. Arrr! Arrr! T' fins line up with t' bottom of the body tube, sweepin' down and back.  You could also reverse them to sweep forward, like t' Estes Star Rider. Avast, me proud beauty! Offset t' aft launch lug so that it lines up with t' front lug on t' transition. Finish as shown in the photo.  I used gloss black over t' primer, then masked and shot gloss red.  Finally 1/8" chrome tape t' trim.