You will need
Comfortably close fitting dungarees (not baggy ones, in other words)
A square metre of floral fabric (Author's note: Lucky leggy ladies may require slightly more fabric, depending on how much coverage they'd like - or not!)
Cream lace trim (optional, but it's probably the easiest way to give the hem a nice finish)
Matching thread for your fabric and trim
Iron and ironing board
Patternmaster or graded setsquare
About a square metre of pattern paper
Strip of card about 60cm long (or longer if you'd like more length, see author's note above)
EasyHonestly, the only reason I didn't mark this as "Very easy" is that it requires sewing which, I appreciate is a technical skill and potentially a daunting prospect for some, but, seriously, this is as easy as sewing gets and not a bad project to start with if you're considering taking up dressmaking.
TimeAbout 2 hours.
To ad-dress the matter of quick recycling...
Pin your card strip at in the middle of your fabric paper. Use your ballpoint pen to pierce through the two points you parked out so that your card works as a compass and your two new holes as reference points for drawing your 2 circles. Cut out your pattern paper. It should form a doughnut shape.
Meanwhile in dungaree camp, you need to mark out a 1cm seam allowance below the waist of your dungarees, using your patternmaster...
...and cut along the line.
Pin your circle of pattern paper to your fabric and cut it out.
Sew your fabric circle to your dungarees and finish the hem, either by turning it under by 1cm and sewing it in place or by attaching some lace trim. Personally, I'd recommend the latter.