Kiwi - it was this one. It's a fab blog. I did see the kuky one, but prefer the blueprints one for clarity myself.
I will try and get a pic on - although I don't imagine it will be with DD wearing it .
It was very easy, and I feel very confident with making more now. I did 5 tiers - I think I would have exploded on the last one if I'd done 6! Too much gathering!
Basically I measured her hips and added 10cm to that measurement. That's the length of the first tier. Then I measured from her waist to where we wanted it to come on her legs and divided it by 5 (i.e. 5 tiers) then added 3cm SA - that's the tier width for each tier. I added a further 6cm to the top tier for the elastic casing.
Each tier is 1.5 times the length of the one above it, so tier 2 is hips+10cm x 1.5. Tier 3 is tier 2 x 1.5 and so on.
I had to make up the lengths with the last three tiers. So first of all I sewed all the bits together so I had all the tiers made up. Then gathered and sewed the second to the first tier, zigzagging over the seams each time to stop them fraying. Did the same with each tier but made sure I hemmed the last tier before I gathered it and sewed it to the fourth tier.
Then I made the casing for the waist elastic, threaded the elastic through and it was done. It didn't take long at all. I have plans now for a lovely blue needlecord one next.
I discovered a tip for myself for the gathering though. First of all I just did long stitches on the machine, but the thread broke on the third tier when I pulled it to make the gathers, so I tried a thicker thread but that wouldn't pull through the fabric at all.
Lastly I decided that, as it's the bobbin thread you pull, I would reduce the tension on the top thread loads, so the bobbin thread wasn't going through the material at all, used a normal thread on the bobbin and the top thread, and it worked brilliantly - even on the very, very long bottom tier .
I'll post again when I've got a pic on my profile. Next project is a new handbag.