Here is my tutorial for a pram liner Hope its easy to understand if you spot any mistakes please let me know and ill correct it.
Put your pram up and measure the length and width MY pram (silvercross 3d) measures 34inches length and 13 inches width. Cut a rectangle out this size and place in pram to make sure it fits.
Make sure its laid flat Now feel where the straps are on my pram there is 5 places Mark a line with biro where these are.
Now take the peice of fabric out of the pram and cut another piece the same size out of the same fleece and also a peice of wadding the same size.
Place a fleece peice pattern facing down, Then wadding on top and then the last fleece peice pattern up. PIn all 3 peices together in several places to stop it moving (no photo sorry)
Then on one side pin bias tape facing down and sew all around. I used 30mm bias i think. You could use a contrasting colour that would look really cool!
Turn the fabric peice round fold the bias tape over and pin all around!
Now sew around the bias to hold it in place
Now cut the slits you marked in biro earlier, Pin along slits to keep the peices of fabric together
Now zig zag along the edges (like you would a button hole)
Now place on pram and push straps through the hole
Heres pics of the finished item!