You will need:
Scraps of card or papers for mounts, stickers, peel offs, die cuts, etc. 1 Sheet of 260gsm card printed on one side and 3 A4 sheet of 260gsm card in white printed on both sides. (Print choice is yours or just use plain card and decorate.) I used Chris Warner Stamp Companion 1 cd for the card base.
Cut your pieces of card for the box to 21cm square, 18cm square and 15cm. Now score 7cm in on all 4 sides of large piece, 6cm on 18cm piece and 5cm on 15cm piece. Cut out the corners.
Fold on your score lines to form the sides of the box.
Decorate your box at this stage.
Cut mounts of card or decorated paper if desired.
Tape or glue the bottom of the two inner boxes and stick inside from largest to smallest.