The MLA said: “Regardless of what you think of Margaret Thatcher’s politics, it is classless to suggest that her death is something that should be celebrated.”
The t-shirt depicts silhouetted figures celebrating beside Lady Thatcher's headstone. The text on the headstone read "Margaret Thatcher: Tyrant and Murderer". Beside the "revelers" is a sign reading "Dancers please form an orderly queue".
According to reports on Journal.ie the tagline which went along with the t-shirt read "It can’t be long now! Get ready for the big day."
The former prime minister has been the target of animosity in republican circles since the IRA hunger strikes in 1981.
LadyThatcher, nicknamed "The Iron Lady", refused political concession to the republican inmates.
The 85-year-old former politician has been retired from public life for many years. She has suffered from a series of small strokes and her memory is also failing, according to her daughter Carol.
COMMENT RULES: Comments that are judged to be defamatory, abusive or in bad taste are not acceptable and contributors who consistently fall below certain criteria will be permanently blacklisted. The moderator will not enter into debate with individual contributors and the moderator’s decision is final. It is Belfast Telegraph policy to close comments on court cases, tribunals and active legal investigations. We may also close comments on articles which are being targeted for abuse. Problems with commenting? email@example.com