The first verse of the famous Friday night prayer, Lecha Dodi, begins: 
 
שָׁמוֹר וְזָכוֹר בְּדִבּוּר אֶחָד
“‘Guard’ and ‘remember’ in a single utterance” 
 
It’s a quote from Rashi, who explains why the commandment regarding the Sabbath is introduced with different words in Exodus and in Deuteronomy:
 
זָכוֹר אֶת־יוֹם הַשַּׁבָּת לְקַדְּשׁוֹ
“Be mindful of the Sabbath day to hallow it” (Exodus 20:8)
 
שָׁמוֹר אֶת־יוֹם הַשַּׁבָּת לְקַדְּשׁוֹ
“Keep the day of Sabbath by hallowing it” (Deuteronomy 5:12)
 
These two words were spoken — and heard — as one.
 
In this piece, the Hebrew words shamor and zachor are intertwined and share letters, as a reminder of this special twofold quality of Shabbat, a glimpse of the profound depths of the Day of Rest.
 
It is hand-written, and one of a kind.
 
Materials: klaf (parchment), diyo (ink) and gold watercolor
Dimensions: 8in wide x 5in tall (roughly)
 
*Photo is for illustrative purposes only. Any similarity to actual Shabbos candles, living or supernal, is purely coincidental.