My aerotech astrobee D has flown at almost every launch for the past few years and is probably the most dependable and consistent flier that i have in my fleet. As a result it has taken a bit of damage to the thin fins over the years. I have always just glued the broken tips back on and she was ready to fly once more. However, on its last fight a 2 inch + chunk of fin broke off and was buried some where in the dirt where it first impacted and it evaded attempts to recover it. I do not want the expense or the dremmel labor of get a whole new fin installed. Any suggestions for appropriate fin repair materials and sources for them?