Spinning Top Blanket BORDER?

Having agreed to do probably a little more than I could manage this month, the Spinning Top Blanket, hasn't been completed as quickly as i had hoped..... 

I now have 6 blocks together and think that 6 blocks would also makes a fabulous blanket too, so now we have 4, 6, 9 or 12 blocks as options for a blanket, all with different uses.

BUT WHAT SIZE BLANKET TO MAKE?

I don't have a place in the house specifically for this blanket so nothing to guide me...

OPTIONS:

4 Blocks: is a gorgeous baby blanket or lap blanket for your knees in a car

6 Blocks: is big enough to wrap around your shoulders or go on the bottom of a single bed or as a sofa throw

8 Blocks: would also make a fabulous wrap blanket or bed runner for the bottom of a double or king size bed.

9 Blocks: would make a big blanket that sat diagonally makes a fab cover for a double/king size bed

12 Blocks: would make a giant of a blanket for a King size bed...although the yarn pack would NOT make this size.

My Dilema is to decide which size i actually make...I had thought maybe i would stop at a 6 blocks get it finished and add the border for you all and use the other 3 blocks i have part made for a couple of square cushions so that i have a circular cushion 2 square cushions and a throw......But looking at it wrapped around me i'm thinking the big 9 block blanket is still the one i really would like to complete 

SO........ please be patient as the border will be completed as soon as i can get to it hopefully over the weekend

for now, I'm thinking 3 or 4 rows of granny shells and finish with a shell st or maybe a more lacy look and finish with 3 or 4 rows of 'v' st....

The final border rounds I'm really not sure of yet....nothing too complicated it really doesn't need it but what, a decision yet to be made.

so today i need to decide on 8 or 9 blocks, wrap blanket/bed runner or the giant square throw?

PATTERN LINKS SO FAR FROM CUSHION TO BLANKET

LINK TO PART 1 MAKING THE ORIGINAL CUSHION FRONT

LINK TO PART 2: DIAMOND/SPEAR SHAPE INFILLS

LINK TO PART 3: TRIANGLE IN FILLS

LINK TO PART 4: BUTTON BAND AND JOINING CUSHION TOGETHER

EASY PEASY ALTERNATIVE CUSHION BACK

MAKING THE SPINNING TOP BLANKET FROM THE CUSHION FRONT

COLOUR SEQUENCE FOR ALL 9 MOTIFS TO DIAMOND IN FILLS

CIRCLES TO SQUARES PREP

BORDER