I suppose it wouldn't hurt for me to pitch in myself with "some" of my designs...
Rank 1:
-Combat Probe (80,000)
Rank 2:
-Spiny (111,700)
Rank 3:
-Prickle Seed (193,600)
Rank 4:
-Frost Cap (232,575)
Rank 5:
-Foundry (367,600)
-Trilobyte (438,000)
-Stinger (444,500)
Rank 6:
-Croc-Head (518,000)
Rank 7:
-Toadstool (792,800)
-Bombard Thorn (845,600)
-Horseshoe Crab (900,000)
Rank 8:
-Harbinger Pod (1,151,650)
-Thornbrush (1,166,300)
-Rook (1,303,100)
-Boom Box (1,497,200)
Rank 9:
-Patriot 1.7M (1,700,000)
-Rust Bucket (1,920,000)
-Gambit (2,000,000)
-Bomb Shell (2,392,400)
Rank 10:
-Brushthorn (2,686,400)
-Spectral Siren (3,116,900)
Rank 11:
-Phobos (4,278,000)
-Harbinger (4,818,600)
Rank 12:
-Saturation (5,971,500)
Rank 14:
-Stella Mortem (7,242,100)
Rank 15:
-Oversaturated (9,289,000)
By no means are these expected to be particularly effective, especially for their cost, but feel free to use them as you will.
