The Hebrew words "חדש ימינו כקדם" are usually translated as “Renew our days as of old” but this is the same as “Make things great again”. The quote is widely familiar among Jews because it is in the “עץ חיים” (Etz Khayim, "Tree of Life") prayer sung when putting the Torah back in the ark. The quote is from the bible, in Eichah (Lamentations) 5:21. The quote establishes that the “Make things great again” theme dates back to the bible. The quote has a subtlety and widespread acceptance that would be missing from a MAGA slogan.
The kippot were made by Kippa Man at 5 Ben Yehuda Street in Jerusalem: https://www.youtube.com/watch?v=ODGrEGEP59s . If people want more of the kippot, Kippa Man is glad to make more, but mailing to the USA is expensive and slow.