Vanessa Hudgens

Which type of magnetic balls should I get "buckyballs" which are good quality and cheap?

1) http://www.amazon.com/Magnetic-Balls-216ct-Magnet-Silver/dp/B004KR6YYK/ref=pd_sbs_t_1

2) http://www.amazon.com/gp/product/B0040DP4HW/ref=s9_simh_gw_p236_d0_i1?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-2&pf_rd_r=1VKP5EWD3QPRF0B3B86D&pf_rd_t=101&pf_rd_p=470938631&pf_rd_i=507846

3) http://www.amazon.com/gp/product/B003D7CFTQ/ref=s9_simh_gw_p21_d0_i4?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-4&pf_rd_r=08SA6X74Q62MFNVRXTFF&pf_rd_t=101&pf_rd_p=470939031&pf_rd_i=507846

4) http://www.amazon.com/Cube-Magnetic-Powerful-Magnets-Spheres/dp/B003HLAHW0/ref=sr_1_7?s=toys-and-games&ie=UTF8&qid=1297383538&sr=1-7

5) http://www.amazon.com/Generic-Earth-Magnets-generic-pieces/dp/B003RB9NL6/ref=sr_1_10?s=toys-and-games&ie=UTF8&qid=1297383538&sr=1-10

6) http://www.amazon.com/Groovy-Magnetic-Balls-Minis-Amazing/dp/B004GJ4ZC0/ref=sr_1_16?s=toys-and-games&ie=UTF8&qid=1297383538&sr=1-16

7) http://www.amazon.com/Dr-Jordans-Magno-Nickel-silver-220pc/dp/B003H3A6G0/ref=sr_1_22?s=toys-and-games&ie=UTF8&qid=1297383538&sr=1-22
http://www.amazon.com/Jordans-Magnet-Cube-220pc-BLACK/dp/B00442M36Y/ref=sr_1_49?s=toys-and-games&ie=UTF8&qid=1297383578&sr=1-49

are the “Dr Jordan” brand good or bad

also I don’t want to get the original buckyball set because they are VERY expensive
I would like to have them be under 20 dollars if possible
if there are any other ones that I have missed, please give me the link

please give me the link for ones that are good quality and under $20

thank you