I received a President's Choice Train Set for Christmas (HO Gauge). As part of the set, there was a package of track connectors made of plastic. They look something like this "I-O-I" made of black plastic. I've searched a lot of different product sites and cannot seem to find anyone who supplies these clips. I call them clips, because they litterally snap into place in the plastic tie portion of the tracks. I think these clips are fantasic to hold all the track tightly togehter. Any help would be appreciated. Thanks in advance.