If you are looking for Blue Silver Laced Wyandotte (or Violet laced Wyandotte as they are called in Europe, it is a fairly easy to breed). Here's a picture to make sure this is what you are looking for.
http://www.google.com/imgres?imgurl=http://www.feathersite.com/Poultry/CGP/Wyand/GBVioletLacedWyP.JPEG&imgrefurl=http://www.feathersite.com/Poultry/CGP/Wyand/BRKWyand.html&h=300&w=328&sz=36&tbnid=BOPkgP3x53r76M:&tbnh=90&tbnw=98&zoom=1&usg=__RSNW6PQKiEipxme_3mekZGOXMy4=&docid=3tTUujf7tQ2JmM&sa=X&ei=0id0UqP2HoPLsATt3IGgBA&ved=0CCwQ9QEwAA
Disregard if this is not what you are looking for.
Breeding a solid colored bird with a laced bird leads to a lots and lots of hatching as said by egghead jr.
The easiest route I have found is:
If you have a Silver laced male and a BLRW
splash female you will get two outcomes. Males will be blue brassy silver laced (I would not use) and females will be blue silver laced, but will still have Mahogany gene which will bleed into the colors and still need to be worked out.
Use this female bred to a Silver Laced Male as before and 25% of the offspring will pure Blue Silver Laced Wyandottes. I would breed for a splash male and breed over a regular black silver laced female, if I was more interested in breeding Blue Silver Laced.
I currently have a rooster that is a blue silver laced, but he has the mahogany and brassiness, will have to do a few more hatches and culls but can still get the blue silver laced in the next hatch.
Cross 1
*
ebeb CoCo PgPg MlMl SS ww IdId RR ebeb CoCo PgPg MlMl MhMh BlBl ww Id- RR
zwart getekend zilver gezoomd [ Yellowskin Lightshank? Rosecomb ]
black patterned silver laced [ Yellowskin Lightshank? Rosecomb ] vuilwit getekend rood gezoomd [ Yellowskin Lightshank? Rosecomb ]
splash patterned red laced [ Yellowskin Lightshank? Rosecomb ]
50% Hanen blauw getekend geel gezoomd [ Yellowskin Lightshank? Rosecomb ]
50% Hennen blauw getekend roodgeschouderd/creme gezoomd [ Yellowskin Lightshank? Rosecomb ]
50% Cockerels blue patterned yellow/golden laced [ Yellowskin Lightshank? Rosecomb ]
50% Pullets blue patterned redshouldered/cream laced [ Yellowskin Lightshank? Rosecomb ]
Cross 2
*
ebeb CoCo PgPg MlMl SS ww IdId RR ebeb CoCo PgPg MlMl Mhmh+ Blbl+ S- ww Id- RR
zwart getekend zilver gezoomd [ Yellowskin Lightshank? Rosecomb ]
black patterned silver laced [ Yellowskin Lightshank? Rosecomb ] blauw getekend roodgeschouderd/creme gezoomd [ Yellowskin Lightshank? Rosecomb ]
blue patterned redshouldered/cream laced [ Yellowskin Lightshank? Rosecomb ]
12.5% Hennen blauw getekend roodgeschouderd/creme gezoomd [ Yellowskin Lightshank? Rosecomb ]
12.5% Hanen blauw getekend roodgeschouderd/creme gezoomd [ Yellowskin Lightshank? Rosecomb ]
12.5% Hennen blauw getekend zilver gezoomd [ Yellowskin Lightshank? Rosecomb ]
12.5% Hanen blauw getekend zilver gezoomd [ Yellowskin Lightshank? Rosecomb ]
12.5% Hennen zwart getekend roodgeschouderd/creme gezoomd [ Yellowskin Lightshank? Rosecomb ]
12.5% Hanen zwart getekend roodgeschouderd/creme gezoomd [ Yellowskin Lightshank? Rosecomb ]
12.5% Hennen zwart getekend zilver gezoomd [ Yellowskin Lightshank? Rosecomb ]
12.5% Hanen zwart getekend zilver gezoomd [ Yellowskin Lightshank? Rosecomb ]
12.5% Pullets blue patterned redshouldered/cream laced [ Yellowskin Lightshank? Rosecomb ]
12.5% Cockerels blue patterned redshouldered/cream laced [ Yellowskin Lightshank? Rosecomb ]
12.5% Pullets blue patterned silver laced [ Yellowskin Lightshank? Rosecomb ]
12.5% Cockerels blue patterned silver laced [ Yellowskin Lightshank? Rosecomb ]
12.5% Pullets black patterned redshouldered/cream laced [ Yellowskin Lightshank? Rosecomb ]
12.5% Cockerels black patterned redshouldered/cream laced [ Yellowskin Lightshank? Rosecomb ]
12.5% Pullets black patterned silver laced [ Yellowskin Lightshank? Rosecomb ]
12.5% Cockerels black patterned silver laced [ Yellowskin Lightshank? Rosecomb ]