Kamil
Good to see the spread of the sport in to other areas of the world.
For the last couple of years we have been taking our older equiptment from our league and passing it through a local sporting goods store. They make an effort to evaluate the equipment, eliminate anything that is a safety issue, refurbish what can be, and ship it to countries such as Poland. Perhaps some of our our donations have made it to your team and helped these kids get to play a great game. We have even sent over uniforms that still have a good amount of life in them.
Best of luck to you and I hope others will look for opportunities to donate supplies and equipment to these efforts.
Try this site for the drills you are looking for. It is a good starting point.
http://www.eteamz.com/baseball/instruction/tips/