Create a small box from 90 x 12mm pine to neatly hold your packets of spices, then divide it into three sections using 3.6mm plywood. Drill holes in the ends and add rope handles to make it portable.
Draw the lines for the dividers on the base, cutting 3.6mm wide and 5mm deep rebates in the sides. Secure the ends and sides with adhesive and dowels or 30mm x 8g screws.
Attach the base with adhesive and nails, then drill two 6mm holes in each end. Slide dividers into rebates and sand, prime and paint the box. Tie sisal rope in the holes for handles.