I've made myself two ballweight-parachute-bags,
The steel-balls, are purchased, with the label of being intended for playing
petanque, but around here, they've gotten another purpose.
They come with a weight of 700 grams a piece, so they give a nice pull.
In order to get them attached to my ballsack, without injuring the relatively
sensitive skin 'down there', I've sown two bags, with room for 1 and 2
steel-balls. This means that the resulting pull will be respectively 700 and
1400 grams ( 1.5 pounds, respectively 3.0 pounds ).
The top of the bags are closed first with a velcro closure, upon which they are
bound into place - with my balls inside the bag, of course.
The logic being, that at first I put the steel-ball(s) into the bag, next thing I put my ballsack in there too, upon which I close the velcro, to give the parachute-shape, before finally tying the line, at the top of the bag tightly around my ballsack, above my balls.
It's only the slave-boy's training state, and your creativity which limit the
amount of weight, that you can apply to an 'ballsack parachute' made this
way.
The top of the bag is created directly from the 'parachute' idea. In this
context it was the easier way to have the steel balls inside the bag, as they
are rather hard to bind in a way, that'll keep them in place.
Another rude idea, would be to stuff the bag, with some light material like
i.e. cotton, which might for a start let the slaveboy think that it's an easy
challenge, until you take him to the swimming pool.
As soon as he's in the water, the cotton will initially pull upwards
because of the air contained in it, but as soon as the cotton gets soaked with
water, the pulling will be slightly downwards. That is, as long as he's
in the water. When he gets out of the water, he'll have quite some weight to
carry along..!
Bag
with 2 steel-balls inside in the photo.
If you take a close look, you'll see that the pull is acting up around the pubic bone.
If you'd like to see how I put it on, then click here.
If you'd like to copy the idea, here you've got a cutting pattern:
-and, as always: Click the image, to see it full-size..!
In case you'd like to have one, for i.e. 2 steel-balls, you just add 7.5 centimeters to the height of the rectangular piece (now 10.0 cm, for two steel-balls = 17.5 cm, for 3 steel-balls 25.0 cm, and so forth..).
A naughty idea, by the way... If her breast have a decent size and shape, it
should be possible, to make two 'breast-binders', with a rim around the base of
her breast, and a 'bag' like this one, to carry the steel-balls, in front of her
nipples.
(I guess that this would be the least uncomfortable, if she's staying on all
four...).