Trace or draw a leaf on a pumpkin, and fill in shape with metal-leaf adhesive. Wait 5 minutes for adhesive to get tacky.
Place a gilding sheet over leaf shape and brush with a dry brush. The sheet will stick to the adhesive and disintegrate around it, so a metallic leaf remains.
Repeat all over pumpkin; paint stem gold with craft paint. Let dry, then arrange on a bed of extra cutout foil leaves.