you will need
a small hinge
first roll out the clay and then cut a circle, this bit needs to be rugged and not smooth, like the foot of a real macaron, then, cut a smooth slightly smaller circle to go on top, i cut circles out of the middles of the bottom parts so there would be space in side to put things. then i stuck the smooth piece on top, and ruffed up the edge of the bottom a bit more, (you can use a tooth pick to do this)
turn them both over so the insides or facing the top and smooth around the circles to make them dish shaped, place the small hinge on between the two and cover with a thin layer of clay (not to much or it will not shut properly), then roll out a long piece of clay to mimic the filling of the macaron and place it around the edge.
close it to ensure it closes properly, then open it back out to dry.
once dry i painted it pink, and the filling white.
for the inside i painted some fabric with mod podge and waited for it to dry, then i cut out circles and
glued them it, and then coated another layer of modpodge.
i painted the rugged part a shade darker than the top of the macaron.
here’s some real ones for inspiration
and here’s my faux one