Instruction :  
Using F5 hook with 2 strands (both greens)
thread together, make loop on hook and join 
with sc to elastic band.  
Rnd 1 : Work 43sc around elastic band. 
           Sl st to 1st sc to join (44sc).  
Rnd 2 : Ch1, sc into same st.. Work (4ch, sc  
            into next st) around.  Ch2, dc into 
            1st sc to join.  
Rnd 3 : Ch1, sc into same loop, *Ch1, into next  
            loop,  work (dc, 1ch) 5 times, sc into next  
            loop.  Repeat from * around.  Sl st to 1st  
            sc to join.  Fasten & break off yarn.   
            Weave in loose end.  
Rnd 4 : Using 3/0 hook, join light pastel green yarn 
            to 1st sp of shell with sc.  Work (5ch, sc 
            into next sp) around.  Ch5, sl st to 1st sc 
            to join.  Fasten & break off yarn.  
            Weave in loose end.