While the sides of your lid are drying cover the plastic base with its printed pattern cut out pieces
Take one of the several circular lid pieces you cut from the card earlier and your largest circular patterned piece finge it ,glue and fold onto cardboard circle this will be the top of your lid, glue into place .
Add one of the remaining circular pattern pieces to the inside of your lid. Check lid for fit on base, unless extremely tight you should have room to add a thin piece of pattern strip to the inside walls of the lid, that probably look a little messy, this will neaten them up . If when you checked the lid for fit on base, you found you had too much play for your liking ,you can at this point lessen the gap by adding a couple of strips of paper to inside walls of the lid.