Too much work, too little time to write... The Torah tells us that the women also donated to the Mishkan, expertly weaving while the wool was still attached to the sheep (35:26). Yet, we know the halacha that a women's handiwork actually belongs to her husband. Isn't it husbands and not wives who deserve the credit from the pasuk? I saw an answer quoted in the name of R' Chaim Volozhiner's mother (and yes, it is because of who said it that I am writing this). The reason a husband is entitled to keep his wife's handiwork is because he provides her with mezonos, food and support. Since in the desert the women did not need their husband's support, as the man fell equally for women as well as men, this takanah of ma'aseh yadayim belonging to the husband did not apply!
(Yes, according to pshat there was not yet in the midbar a din of kesubah much less a takanah of ma'aseh yadayim, but if that's your approach then please try to explain to me the Rashi about Yosef showing Ya'akov his wife's kesubah without diving into an abyss of allegorical mush. We discussed this before v'ain kan makom l'ha'arich.)
Update: "Rebbetzin Volozhiner" may get creativity points for her answer, but my wife prefers pshat to derash and when I mentioned this question on Shabbos she immediatly pointed out that who says the women who donated were married -- maybe they were the single girls and the whole kashe doesn't get off the ground.