thanks for the replies.
what i did was get large elastic bandsand - for the top teir i rolled 7 sixe 1 nappies titghtly inside the band then repeated this for tier 2 and then put another band around it and put another 15 size 1 nappies into that to make layer 2, and for the bottom layer i had 3 rounds of nappies all size 2 so it looked like a stacked cake, then i put in little blue sleep suits, bibs, muslin etc and on the top as a topper i put a little blue hat - it looked great but then i had a better idea!!
i had bought a fleecy baby blanket so i used that as the centre and rolled the nappies around that securing with the big elastic bands and built it up to 3 layers and decorated it with the sleep suits and ribbons.
i have taken a photo but have no idea how to upload!!!