Old Jeans to Cute Bag
Flatten the jeans lining up the two sides of the waist then pin them together. (small red circles)
Next cut a straight line making sure you cut right beside the crotch seam. It pays to make sure when you do this that you aren't cutting the back pockets.
Fold the jeans inside out and take out the pins in the waist. Then, above the part you cut, pin through both sides of the jeans in a straight line leaving a centimetre from the bottom of the crotch seam. I suggest putting a pin through the middle (green circle) then working your way outwards to get the straightest line or follow the threads in the material. Don't worry if the waist of the jeans don't line up with each other any more, it won't effect the final product.
Flip your jeans right-side-out again. As you can see mine are a little uneven and it cuts off the bottom of the pocket but this doesn't bother me as you won't be able to tell once its filled with things.If you are a perfectionist then go ahead and re-line the pins until you have it just the way you want.
Now get out your zip and the pins. The zipper I used is quite a bit longer than the waist length but once sewn on, you can cut off the extra or leave it.
This next step might get a little confusing.
First turn the jeans inside out. Then, keeping in mind which way the zip will be facing/going when this is right-side-out, open the zip and pin it to the very top of the waist starting at the side seam of the pants. There is a faint line on the zip which I have highlighted with the red pen. On one half you want to pin it to the material, the other half should extend over the edge so that when it comes time to close the zip, its not going to get jamed.
When you get to button, continue to pin on the button side of the overlap but not on the button hole side. Once you have pined it, put the button back through the hole so that the waistline stays straight.
Keep on pinning and don't worry about the area in the red circle but make sure the zip isn't to slack around that area where it hasn't been pinned. You don't wan't it supper tight either or it will bunch.
P.S. at this point all my pins below the crotch fell out. If this happens to you at any point don't worry about putting them back in until after the zip has been completely sewn on.
Start sewing the zip in place following the line where you placed the pins. When you get to the belt loops, the sewing machine will most likely not be able to sew over them depending on the thickness of the denim. Just close of the thread then start again on the other side of the belt loop. Once the bag is finished you can go back and hand sew where the belt loops are if they have left big gaps.
When you reach the button, close of the thread and listen closely!
The red arrow on your right (when you look at this) is where you sew to then close off. Then you want to undo the button, fold over and pin parallel to where you just sewed (blue line). Don't sew the area in the green circle, after the bag is finished go back and hand sew it to the zip. Trying to get in there with the sewing machine has broken the needle and stuffed up the zip before on previous attempts so so I don't recommend trying it. Carry on sewing from the left side of the button (second red arrow).
Close the zip at the op-site side seam (the one that goes down the outer side of you leg) Run thee zip down the track to make sure everything is A okay.
Now do the same thing on the other side of the jeans. Be careful that the zip lines up to the the other side. Turn your jeans right side out and make sure that the zip lines up okay and that you don't have random bunching.
When I did I'd sewn to far past the outer side seam and had to use a seam ripper to bring it back a little further. Also you don't want the two ends of the zipper to be two close, about two cm apart is fine.
Run the zip along one more time, when its closed it should look like how its going to look when its finished so make sure everything it where its meant to be.
Sew it onto the waist closing it off when you get to belt loops then continuing on from the other side.
This is why you need to leave a couple of cm on either side, so that the end of the zip can tuck into the bag. Feel free to sew the zip to the inside if its going to be a pain.
Now fold the other end in and hand sew any gaps in the zip e.g. belt loops and the button area.
If your pins down by the crotch did fall out, this is the time to put them back in line. If you have to do this, the waistline may not stay flat in order for you to get a straight line. Don't worry about that just get your line of pins in place. Make sure when you do this that the two opposing crotch seams line up or you bag will turn out misshapen.
Sew the seam 1cm from the edge of the denim. This may cut off parts of you back pocket unfortunately, it really depend on the design of them.
If you haven't already you can cut off the oven hang of the zip but make sure that if you do this you sew the ends to the bag or there's a chance the zipper will slide off. Cut any over hang no less than 1/2 a centimetre from the seam (its hard to see but its under the green line).
And your finished!