HOW I MET YOUR MOTHER – “Sandcastles in the Sand” (S03E16) Pictures April 21, 2008 How I Met Your Mother Robin Sparkles is back on tonight’s new episode of HOW I MET YOUR MOTHER and she is bringing us a new song, “Sandcastles in the Sand.” Even better, James Van Der Beek guest stars as her old flame. The next step is to find a way to keep Mr. Van Der Beek on the show, or how about giving him his own show, again?! Don’t forget to watch How I Met Your Mother “Sandcastles in the Sand” tonight, April 21, at 8:30pm on CBS. For now check out a clip from Robin Sparkles’ new music video and more pictures for How I Met Your Mother “Sandcastles in the Sand” below. Read all our How I Met Your Mother coverage here. Episode Synopsis: “Sandcastles in the Sand” – When Robin rekindles things with an old flame, he crushes her again, but Barney, in his own inimitable style, helps her realize that she is awesome. (Photos: Randy Tepper/CBS ©2008 CBS Broadcasting Inc. All Rights Reserved.) Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)